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—What does the sign over there read?—No person ________smoke or carry a lighted cigarette ,cigar or pipe in this area.
#63550
A
will
B
may
C
shall
D
must
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—–I think the man over there must be Tom.—–It _____ be him. He has ______ to America.
#75468
A
can’t；gone
B
can’t；been
C
may not；been
D
mustn’t；gone
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
）The red bike _______be Hu’s.  She has a blue bike.
#75843
A
must
B
might
C
can
D
can’t
—Dad, must I finish my homework today?—No, you ______. You may do it tomorrow.
#74354
A
needn’t
B
mustn’t
C
don’t
D
won’t
 --- Do we have to hand in our research reports this afternoon, Professor Smith?--- Yes, you _______ . I will be waiting to check them all the afternoon.
#62581
A
should
B
may
C
can
D
must