Question

【题目】— Hi, Tom. I called you last night, but nobody answered.

— Oh, I ____ the violin at that time.

A. practice B. was practicing C. am practicing

Answer 1

【答案】B

【解析】句意：-----嗨，汤姆。我昨晚给你打电话，但没有人接。-----哦，那时我在练习小提琴。A. practice一般现在时；B. was practicing过去进行时；C. am practicing现在进行时。根据时间at that time（那时）结合语境可知用过去进行时，故选B。