Question

【题目】Ann ______ the house when I called her last night.

A. cleans B. was cleaning C. will clean D. is cleaning

Answer 1

【答案】B

【解析】句意：昨晚我给安打电话时，她正在打扫房间。由when I called her last night可知，主句用过去的某一种时态，根据选项分析，只有B属于过去的某一种时态。故选B。