Question

【题目】—Where are Jeff and Jack?

—They ________ in the pool.

A. are taking a walk B. are swiming

C. are swimming D. are playing basketball

Answer 1

【答案】C

【解析】试题分析：句意：——Jeff和Jack在哪儿？——他们正在水池里游泳。根据in the pool可排除A，D；swim的现在分词是swimming。故选C。