Question

--Beg your pardon, please.I didn't quite catch what you said.---Oh, I ___ to myself.

A. had talked    B. talking    C. talked     D. was talking

Answer 1

D

解析:

对方没听清楚，请求我把刚才的话再说一次。我答时说：哦，我那时在自言自语啊！说明对方没听清楚的原因。