Which sentence must be revised to eliminate the preposition at the end?

A. Please invite the guests in.

B. Jenni did not know what the movie was about.

C. I don’t know where Carlos is staying at.

D. Which town are you going to?

Answer

The sentence that must be revised to eliminate the preposition at the end is:

C. I don’t know where Carlos is staying at.

The revised sentence would be:

C. I don’t know where Carlos is staying.

Certainly! The preposition “at” at the end of the sentence in option C is unnecessary and can be removed to eliminate the preposition at the end. In English grammar, it is generally considered more formal or stylistically preferable to avoid ending sentences with prepositions whenever possible.

In the revised sentence “I don’t know where Carlos is staying,” the preposition “at” has been eliminated from the end of the sentence. The meaning of the sentence remains the same, but it adheres to the guideline of avoiding prepositions at the end.