——Will you stay for lunch?——Sorry,       . My brother is coming to see me.
#63161
A
I mustn’t
B
I can’t
C
I needn’t
D
I won’t
推荐题目
— Must they clean and tidy the classroom now? — No, they      . It       after school in the afternoon.
#78237
A
mustn’t; must clean
B
needn’t; must clean
C
mustn’t; need be cleaned
D
don’t have to; can be cleaned
You ________ stop when the traffic light turns red. 
#76630
A
can
B
had better
C
need
D
must