This question tests subject-verb and pronoun-antecedent agreement (CCSS.L.3.1.f). Subject-verb agreement means the verb must match the subject in number. For subject-verb agreement: singular subjects need singular verbs (with -s: runs plays is has) while plural subjects need base verbs (no -s: run play are have). In this sentence the subject is 'Maria and Carlos' which is plural (compound subject). Therefore the verb must be in base form 'play.' Choice B is correct because it properly matches the plural subject with the base verb 'play.' The form 'play' agrees with 'Maria and Carlos.' Choice A is incorrect because it uses the singular verb 'plays' with a plural subject. This common error happens when students don't identify compound subjects as plural. To help students: For subject-verb agreement teach that singular subjects get -s on the verb (dog runs) while plural subjects use base form (dogs run). Special forms: is/are (singular/plural) has/have (singular/plural). Trick: Find the subject first then check if it's one or more than one. Watch for: adding -s to both subject and verb (dogs runs).

This question tests subject-verb and pronoun-antecedent agreement (CCSS.L.3.1.f). Subject-verb agreement means the verb must match the subject in number. For subject-verb agreement: singular subjects need singular verbs (with -s: runs plays is has) while plural subjects need base verbs (no -s: run play are have). In this sentence the subject is 'Everyone' which is singular. Therefore the verb must be the singular form 'is.' Choice C is correct because it properly matches the singular subject with the singular verb 'is.' The form 'is' agrees with 'everyone.' Choice A is incorrect because it uses the plural verb 'are' with a singular subject. This common error happens when students don't identify indefinite pronouns like 'everyone' as singular. To help students: For subject-verb agreement teach that singular subjects get -s on the verb (dog runs) while plural subjects use base form (dogs run). Special forms: is/are (singular/plural) has/have (singular/plural). Trick: Find the subject first then check if it's one or more than one. Watch for: adding -s to both subject and verb (dogs runs).

This question tests subject-verb and pronoun-antecedent agreement (CCSS.L.3.1.f). Pronoun-antecedent agreement means the pronoun must match the noun it replaces in number and gender. For pronoun-antecedent: the pronoun must match in number (singular/plural) and gender (he/she/it) with the noun it refers to. The antecedent is 'The students' which is plural, so the pronoun must be 'their.' Choice D is correct because it properly matches the plural antecedent with the plural pronoun 'their.' The form 'their' agrees with 'students.' Choice A is incorrect because it uses the singular pronoun 'his' for a plural antecedent. This common error happens when students match pronoun to wrong number. To help students: For pronoun-antecedent teach number match (one→he/she/it many→they) and gender match (boy→he girl→she thing→it). Trick: Find the antecedent first then check if it's one or more than one and male/female/neuter. Watch for: using singular pronoun for plural antecedent (students→his should be their).

This question tests subject-verb and pronoun-antecedent agreement (CCSS.L.3.1.f). Subject-verb agreement means the verb must match the subject in number. For subject-verb agreement: singular subjects need singular verbs (with -s: runs plays is has) while plural subjects need base verbs (no -s: run play are have). In this sentence the subject is 'The students' which is plural. Therefore the verb must be in base form without -s. Choice B is correct because it properly matches the plural subject with the base verb 'read.' The form 'read' agrees with 'students.' Choice A is incorrect because it uses the singular verb 'reads' with a plural subject. This common error happens when students confuse -s endings. To help students: For subject-verb agreement teach that singular subjects get -s on the verb (dog runs) while plural subjects use base form (dogs run). Special forms: is/are (singular/plural) has/have (singular/plural). Trick: Find the subject first then check if it's one or more than one. Watch for: adding -s to both subject and verb (dogs runs).

This question tests subject-verb and pronoun-antecedent agreement (CCSS.L.3.1.f). Pronoun-antecedent agreement means the pronoun must match the noun it replaces in number and gender. For pronoun-antecedent: the pronoun must match in number (singular/plural) and gender (he/she/it) with the noun it refers to. The antecedent is 'The dog' which is singular and neuter (animal/thing), so the pronoun must be 'its.' Choice C is correct because it properly matches the singular neuter antecedent with the singular neuter pronoun 'its.' The form 'its' agrees with 'dog.' Choice A is incorrect because it uses the plural pronoun 'their' for a singular antecedent. This common error happens when students match pronoun to wrong number. To help students: For pronoun-antecedent teach number match (one→he/she/it many→they) and gender match (boy→he girl→she thing→it). Trick: Find the antecedent first then check if it's one or more than one and male/female/neuter. Watch for: using singular pronoun for plural antecedent (students→his should be their).

This question tests subject-verb and pronoun-antecedent agreement (CCSS.L.3.1.f). Subject-verb agreement means the verb must match the subject in number. For subject-verb agreement: singular subjects need singular verbs (with -s: runs plays is has) while plural subjects need base verbs (no -s: run play are have). In this sentence the subject is 'The class' which is singular (collective noun). Therefore the verb must be in singular form 'listens.' Choice B is correct because it properly matches the singular subject with the singular verb 'listens.' The form 'listens' agrees with 'class.' Choice A is incorrect because it uses the base verb 'listen' with a singular subject. This common error happens when students confuse collective nouns as plural. To help students: For subject-verb agreement teach that singular subjects get -s on the verb (dog runs) while plural subjects use base form (dogs run). Special forms: is/are (singular/plural) has/have (singular/plural). Trick: Find the subject first then check if it's one or more than one. Watch for: adding -s to both subject and verb (dogs runs).

This question tests subject-verb and pronoun-antecedent agreement (CCSS.L.3.1.f). Pronoun-antecedent agreement means the pronoun must match the noun it replaces in number and gender. For pronoun-antecedent: the pronoun must match in number (singular/plural) and gender (he/she/it) with the noun it refers to. The antecedent is 'Emma' which is singular and female, so the pronoun must be 'her.' Choice C is correct because it properly matches the singular female antecedent with the singular female pronoun 'her.' The form 'her' agrees with 'Emma.' Choice A is incorrect because it uses the wrong gender pronoun 'his' for a female antecedent. This common error happens when students match pronoun to wrong gender. To help students: For pronoun-antecedent teach number match (one→he/she/it many→they) and gender match (boy→he girl→she thing→it). Trick: Find the antecedent first then check if it's one or more than one and male/female/neuter. Watch for: using singular pronoun for plural antecedent (students→his should be their).

This question tests subject-verb and pronoun-antecedent agreement (CCSS.L.3.1.f). Subject-verb agreement means the verb must match the subject in number. For subject-verb agreement: singular subjects need singular verbs (with -s: runs plays is has) while plural subjects need base verbs (no -s: run play are have). In this sentence the subject is 'The teacher' which is singular. Therefore the verb must be in singular form with -s. Choice B is correct because it properly matches the singular subject with the singular verb 'explains.' The form 'explains' agrees with 'teacher.' Choice A is incorrect because it uses the base verb 'explain' with a singular subject. This common error happens when students don't identify if the subject is singular or plural. To help students: For subject-verb agreement teach that singular subjects get -s on the verb (dog runs) while plural subjects use base form (dogs run). Special forms: is/are (singular/plural) has/have (singular/plural). Trick: Find the subject first then check if it's one or more than one. Watch for: adding -s to both subject and verb (dogs runs).

This question tests subject-verb and pronoun-antecedent agreement (CCSS.L.3.1.f). Subject-verb agreement means the verb must match the subject in number. For subject-verb agreement: singular subjects need singular verbs (with -s: runs plays is has) while plural subjects need base verbs (no -s: run play are have). In this sentence the true subject is 'three pencils' which is plural (even though 'There' starts the sentence). Therefore the verb must be the plural form 'are.' Choice B is correct because it properly matches the plural subject with the plural verb 'are.' The form 'are' agrees with 'pencils.' Choice A is incorrect because it uses the singular verb 'is' with a plural subject. This common error happens when students don't identify the real subject after 'There.' To help students: For subject-verb agreement teach that singular subjects get -s on the verb (dog runs) while plural subjects use base form (dogs run). Special forms: is/are (singular/plural) has/have (singular/plural). Trick: Find the subject first then check if it's one or more than one. Watch for: adding -s to both subject and verb (dogs runs).

This question tests subject-verb and pronoun-antecedent agreement (CCSS.L.3.1.f). Subject-verb agreement means the verb must match the subject in number. For subject-verb agreement: singular subjects need singular verbs (with -s: runs plays is has) while plural subjects need base verbs (no -s: run play are have). In this sentence the subject is 'There' but agreement is with 'three books' which is plural. Therefore the verb must be the plural form 'are.' Choice B is correct because it properly matches the plural logical subject with the plural verb 'are.' The form 'are' agrees with 'three books.' Choice A is incorrect because it uses the singular verb 'is' with a plural logical subject. This common error happens when students don't identify the true subject in expletive sentences. To help students: For subject-verb agreement teach that singular subjects get -s on the verb (dog runs) while plural subjects use base form (dogs run). Special forms: is/are (singular/plural) has/have (singular/plural). Trick: Find the subject first then check if it's one or more than one. Watch for: expletives like 'there' where agreement follows the noun after the verb.