You_______ play with fire, Tom. It's dangerous.
#75026
A
needn't
B
shouldn't
C
mustn't
D
wouldn't
推荐题目
We ______ the difficulty together, but why didn't you tell me?
#63504
A
should face
B
might face
C
could have faced
D
must have faced
--______you swim? -- No, I can’t. 
#76717
A
Can
B
May
C
Must
D
Need