—She looks very happy. She ______ have passed the exam.--I guess so. It’s not difficult after all.
#88109
A
should
B
could
C
must
D
might
推荐题目
You ___ go to the shop.There are quite a few eggs in the fridge.
#90306
A
don’t have to
B
have to
C
needn’t to
D
don;t need
You _____ practise the drums while the baby is sleeping. 
#89558
A
needn’t
B
mightn’t
C
mustn’t
D
won’t