Lifting off at sunrise, the hot air balloon goes wherever the wind       blow.
#63659
A
may
B
must
C
need
D
should
推荐题目
It was fine yesterday so I ______ the trouble to carry my raincoat with me.
#63141
A
don’t need to take
B
mustn’t have taken
C
didn’t need to take
D
needn’t have taken
You _________ get up so early. It’s weekend today.
#75626
A
mustn’t
B
can’t
C
needn’t
D
oughtn’t