Tommy, you____ be hooked on the Internet all day. You may fall behind others in study.
#63526
A
mustn’t
B
shan’t
C
can’t
D
needn’t
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—I don’t mind telling you what I know. —You _____. I can manage it myself.
#63188
A
mustn’t
B
ought not to
C
can’t
D
don't have to
—I think the man over there must be Bob. -- It_______ be him. He has______ to Australia.
#78073
A
can’t, gone
B
can’t, been
C
may not, been
D
mustn’t, gone
The weather turned out to be fine yesterday. I ________the trouble to carry my umbrella with me.
#63252
A
should have taken
B
could have taken
C
mustn't have taken
D
needn't have taken
Food safety is important. Rules to stop people from food pollution.
#76536
A
must make
B
must be made
C
can’t make
D
can’t be made