You _____ practise the drums while the baby is sleeping. 
#89558
A
needn’t
B
mightn’t
C
mustn’t
D
won’t
推荐题目
---John, how did your English exam go? -----I thought I ____,but in fact I came in the top 10% in the class.
#90317
A
should have failed
B
couldn’t have failed
C
might have failed
D
mustn’t have failed
 I _______ have been more than six years old when the accident happened.
#89803
A
shouldn’t
B
couldn’t
C
mustn’t
D
needn’t
Disney used to ___ pictures in the family garage.
#88983
A
drawn
B
draw
C
drew
D
drawing