— 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
推荐题目
 It was playing computer games that cost the boy plenty of time he ____ doing his lessons.
#89110
A
might have spent
B
ought to have spent
C
must have spent
D
could have spent
 The airplane _____late, for we didn’t see the famous pop singer until 10 pm.
#88058
A
must be
B
will be
C
would have been
D
must have been
He said he didn’t regret telling the truth but felt that he ______ it differently. 
#87843
A
could have expressed
B
could express
C
must have expressed
D
would express