He was very nervous when he was asked to make an _______ speech.A：tedious B：boring C：impromptu D：impulse
问题描述：
He was very nervous when he was asked to make an _______ speech.
A：tedious
B：boring
C：impromptu
D：impulse
答
A：tedious 枯燥
B：boring 无聊
C：impromptu 即兴
D：impulse 推动
选c，根据句子意思
答
C 即兴演讲
答
选c
意思是当他被要求做即兴演讲时他非常紧张.
impromptu speech就是即兴演讲