单项选择题

Stop writing. It’s time that you __________ your paper.

A．must hand in
B．have to hand in
C．could hand in
D．handed in
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单项选择题
Please go and make sure __________ you get a receipt.
A．that
B．if
C．how
D．why
单项选择题
A: We went to Italy for a holiday last year.B: That __________ nice.
A．can be
B．must be
C．must have been
D．can’t have been
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