Correcting Sentence Fragment and Sentence Combination Errors Practice Test

Replace the underlined portion with the answer choice that results in a sentence that is clear, precise, and meets the requirements of standard written English.

Creating new models is always a tricky proposition for mathematicians, always trying to do things no one else has ever done before.

Replace the underlined portion with the answer choice that results in a sentence that is clear, precise, and meets the requirements of standard written English.

The race track was known for being the venue of many dangerous events, with few companies willing to insure any races held there.