Which of the following sentences uses a preposition properly?

A. Connor waited in line while Ava parked the car.
B. Where is David at?
C. There was a big argument between Megan, Abira, and Lena.
D. I might of lent him the book, if he had asked

A.

B. is wrong because we don't end a sentence with a preposition.

C. is wrong because "between" is used only between two people or things.

D. is wrong because "of" is a preposition, but a verb is needed here.

Here's my issue with A. Connor waited in line is one complete sentence. Ava parked the car is another complete sentence. "While" is used as a conjuction here - not as a preposition.

The sentence that uses a preposition properly is:

A. Connor waited in line while Ava parked the car.

The sentence that uses a preposition properly is:

A. Connor waited in line while Ava parked the car.

To identify the correct sentence, we can first understand what a preposition is. A preposition is a word that shows a relationship between a noun (or pronoun) and another word in the sentence. It often indicates location, direction, time, or manner.

In sentence A, the preposition "in" is used correctly to show the location of Connor while he waited. It establishes the relationship between "Connor" and "line" by indicating where Connor was waiting.

In sentence B, the word "at" is unnecessary as it is redundant. The question "Where is David?" would be sufficient.

In sentence C, the word "between" is used correctly, but there is no need for the comma after "Abira."

In sentence D, the phrase "might of" is grammatically incorrect. It should be "might have" instead.

Therefore, the sentence that uses a preposition properly is A. Connor waited in line while Ava parked the car.