—Mr. Wang, must I come again to clean the window on Sunday morning?—No, you _____ . I have asked others to do it.
#75558
A
don’t have to
B
mustn’t
C
can’t
D
shouldn’t
推荐题目
— Li Fan won the first prize in the national physics competition. — I ________ he was the winner.
#63178
A
shouldn’t have thought
B
must have thought
C
need have thought
D
could never have thought
I told Sally how to get here, but perhaps I ______for her.
#63022
A
had to write it out
B
must have written it out
C
should write it out
D
ought to have writte it out