The use of the preposition "for" in this sentence is incorrect, as it is not the common preposition matched with disapproval. The commonly used word is "of," which more properly conveys the connection to disapproval. The only answer choice which makes this change is "they had shown strong disapproval of her choice."

The use of the preposition "for" in the sentence is odd, and does not properly reflect what the girls are doing. The preposition should be changed to indicate that they challenged during certain moments. The preposition that best shows this is "at," making the correct answer choice "their father's rules at every opportunity."

The most idiomatic use of prepositions is "Her inquiry into the petroleum cartels of Brazil." The phrase "inquiry about" is unidiomatic. And many of the adjustments to the preposition preceding Brazil are seemingly trivial. It is important in this case to examine each choice carefully and consider both prepositions and the particular context of their use.

Comparative prepositions (like "senior" or "junior") are followed by "to", not than, from, or against. The correct version of the sentence reads, "Even though we started on the same day, at this point Robert is junior to me in the company."

The example sentence includes a preposition error. Prepositions are used to describe relationships of time, space, or logic between parts of a sentence. When a comparison is being made between two things, one thing (in this case the merger) is compared TO another thing (in this case a bloodless coup). "With" is used to describe combinations ("Tommy went to school with Jane), and compliance ("they complied with regulations"). The correct version of this sentence reads, "She compared the merger to a bloodless coup."

This sentence contains a dangling preposition. Prepositions should never end a sentence in English, so the sentence must be reworked in order to remove the mistake. Simply omitting the "to" at the end is not sufficient, however, since the sentence will not make sense once that is done. The correct choice is, "Sandra felt she could not talk to anyone" because it is the closest to the meaning of the original sentence and fixes the error.

The correct pairing is "different from;" "than" is only used with comparative adjectives such as "larger than" or "smarter than." "Different from those" is correct - the demonstrative "those" must match, in number, what it refers to - in this case, "habits."

It is incorrect to have a preposition dangling at the end of a sentence. In fact, the preposition "of" is unnecessary in this sentence. "He heard the strangest rumors about the celebrity" is the best answer because it conveys the same idea in the most clear and concise manner.

This sentence contains a dangling preposition. You should never end a sentence with a preposition in standard English. Additionally, "yet" cannot come at the end of the sentence either, since it is a conjunction. The only choice that fixes this issue is, "Though Harun has broken many records, he has not yet broken the record he wants to break."

This sentence contains a dangling preposition. A preposition should never end a sentence in English. "about his new position, but he did not know to whom he should talk" is the correct choice, as it fixes this issue. The other choices contain punctuation errors (Note: a comma should be used before "but" because it is joining two independent clauses) or change the action to passive voice unnecessarily.