---Guess what! I have got the highest score in the final exam. ---- Great! You ______ worked very hard and put a lot of energy into it.
#63605
A
must
B
must have
C
should
D
should have
推荐题目
—Must I clean my room now, Mum?—_______. You can do it tomorrow.
#75944
A
No, you needn’t
B
No, you mustn’t
C
Yes, you need
D
Yes, you must
My sister met him at the Grand Theater yesterday afternoon, so he ________ your lecture.
#63289
A
couldn’t have attended
B
needn’t have attended
C
mustn’t have attended
D
shouldn’t have attended