Question

【题目】---I called you at 4:00 yesterday afternoon, but nobody answered.

---Sorry, I ______ with my friends at that time.

A. had swum B. swam

C. would swim D. was swimming

Answer 1

【答案】D

【解析】试题分析：句意：—我在昨天下午4点给你打电话，但是没有人接。—对不起，我那时正在和朋友游泳。根据语境分析是过去正在做某事，所以要用过去进行时态，故选D。