Facts prove that the world’s economic development is not a win-lose game but one in which all ______ be   winners. 
#62924
A
shall
B
can
C
must
D
will
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My sister met him at the street yesterday afternoon, so he __________ your lecture.
#63077
A
shouldn’t have attended
B
couldn’t have attended
C
mustn’t have attended
D
needn’t have attended
—To make our city more beautiful, rubbish         into the river. —I agree.
#78182
A
needn’t be thrown
B
mustn’t be thrown
C
can’t throw
D
may not throw
---      your brother swim, John?---No, he       .
#75887
A
Is; isn’t
B
Can; can
C
Can; can’t
D
are, can’t