Question

---I called you yesterday evening, but there was no answer.
　　　　  ----- Oh, I’m sorry. I _____ dinner at a restaurant at that time.

A．have

B．had

C．was having

D．have had

Answer 1

C

考查时态。句意：昨天晚上我给你打电话，但是没人接。噢，很抱歉，我当时正在饭馆吃饭。根据题中的时间状语at that time 时过去进行时的语法标志之一，所以选C。