Question

【题目】I didn’t hear the phone. I ___ asleep.

A.must beB.must have been

C.should beD.should have been

Answer 1

【答案】B

【解析】

试题 考查情态动词。句意：我没有听到电话，肯定是睡着了。根据 I didn’t hear the phone可知是对过去的肯定推测，故用must have done,因此选B项。

考点 : 考查情态动词