Johnny, you _________play with the knife, you_________ hurt yourself. 
#76255
A
won’t; can’t
B
mustn’t; may
C
shouldn’t; must
D
can’t; shouldn’t
推荐题目
 I didn’t know Headmaster Weng was away for Beijing. I       to his office yesterday.
#63308
A
mustn’t have gone
B
needn’t have gone
C
wouldn’t have gone
D
couldn’t have gone
Not having work out the problem,          leave the office.
#63683
A
so he was not allowed to
B
and he didn’t want to
C
the teacher couldn’t make him
D
he couldn’t free himself to
 —Is Jack on duty today? —It_____ be him. It’s his turn tomorrow.
#62168
A
mustn’t
B
won’t
C
can’t
D
needn’t