题目

题型：不详难度：来源：

---I rang you yesterday afternoon. A man answered, but I didn’t recognize the voice.
--- Oh, it ____ my uncle. He was in my room then.

A．must have been

B．should have been

C．must be

D．should be

答案

A

解析

考查情态动词表推测。因为是对过去事实表推测，要用情态动词加完成时态，排除C,D；should have been表本应该是实际不是；must have been肯定是；根据He was in my room then，可知是我叔叔的可能性很大。所以选A。