He was very nervous when he _______ make an impromptu speech
6个回答

He was very nervous when he was asked to _______ make an impromptu speech (即兴演讲).

A:is asking to

B:was asked to

C:was asking for

D:asked to

选B

首先排除A,因为前半句是过去时 主从句要一致,所以后面也要是过去时

Be asked to do sth 被要求/邀请做某事

他被邀请做一个即兴演讲,他感到非常紧张.