—I wonder why Susan looks worried today. —I’m not sure, but she _____a small accident driving here.
#62614
A
could have
B
might have
C
might have had
D
must have had
推荐题目
With all his money, he ________ worry about a little thing like 5 cents!
#62403
A
can
B
must
C
may
D
should
— Listen! Helen is singing in the classroom.—It _______ be Helen. She has gone to Shanghai.
#74428
A
mustn’t
B
may not
C
can’t
D
should
—Must I go there right now, mum?—No, you ____. You can go there tomorrow.
#75563
A
shouldn’t
B
can’t
C
mustn’t
D
needn’t
I was really anxious about you. You _______ home without a word．
#63535
A
mustn’t leave
B
shouldn’t have left
C
couldn’t have left
D
needn’t leave
--Shall I take my swimming suit ?--No , you _____ . We will just go hiking in the mountain .
#74927
A
mustn’t
B
couldn’t
C
needn’t
D
can’ t