Select the answer that would correctly complete the sentence.
-The students revised their papers in the computer lab;

Question

Quizplus · Accepted Answer

The phrase "as their instructor circulated to answer questions" suggests that revising papers and the instructor circulating to answer questions were happening simultaneously. However, there is no clear indication that the instructor was actively assisting with the revision process. Therefore, option B is the best choice as it simply states that the instructor was present in the lab and available to answer questions without implying any additional involvement. Option C is not grammatically correct as it is missing a preposition after "circulating."

Select the Answer That Would Correctly Complete the Sentence