It ________be the vocabulary that caused you the problem in the exercise because you know a lot of words.
#62306
A
may
B
couldn’t
C
should
D
needn’t
推荐题目
—Dad, must I finish my homework today?—No, you ______. You may do it tomorrow.
#74354
A
needn’t
B
mustn’t
C
don’t
D
won’t
—Listen！Helen is singing in the next room.—It _____be Helen .She has gone to Beijing.
#75780
A
should
B
mustn’t
C
may
D
can’t
—Must I pay for the bill now, boss?—No, you __________ pay for it after the meal.
#75532
A
needn’t
B
can’t
C
may
D
should
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
—Must I finish my homework at school?— No, you_____. you can do it at home
#77456
A
can't
B
mustn't
C
needn’t
D
won’t