——Catherine, I have cleaned the room for you.——Thanks, You       it. I could manage it myself.
#63293
A
needn’t do
B
needn’t have done
C
mustn’t do
D
shouldn’t have done.
推荐题目
––__________ I smoke here?–– No, you __________.
#77064
A
Must; can’t
B
Do; can’t
C
Can; can’t
D
Can; don’t
-Is that Mary?-No, it _______be her. She has gone to Tokyo. 
#75898
A
can’t
B
may
C
needn’t
D
mustn’t
The teacher _______some old friends on his vacation trip to Paris.
#77006
A
dropped by
B
dropped in
C
droped by
D
droped in