—You didn’t wait for Mr. Black last night, did you?  —No, but we ____. He didn’t return home at all. 
#89202
A
couldn’t have
B
needn’t have
C
didn’t need to
D
should wait have
推荐题目
Elise remembers many things exactly as if it ______ yesterday.
#89434
A
was happening
B
happens
C
has happened
D
happened
— Catherine, I have cleaned the room for you. — Thanks. You ______ it. I could manage it myself. 
#90498
A
needn’t do
B
needn’t have done
C
mustn’t do
D
shouldn’t have done