Question

【题目】—I called you last night, but you didn't answer.
—Sorry, Grace. I I Am A Singer when the phone rang.
A.am watching
B.was watching
C.have watched

Answer 1

【答案】B
【解析】表示过去某动作发生时．另一动作正在进行，用过去进行时，故选B。句意是：当电话铃响的时候我正在看《我是歌手》。