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It _________ rain this afternoon, but I am not sure.
A．will
B．can
C．must
D．may
The police still haven’t found her, but they’re doing all they .
A．will B．can C．may D．must
________ you please pass me that book?
[ ]
－________ I come tomorrow?－No, you needn't.
—How is your friend coming?
—I’m not sure．He _______ drive here.
A．may B．can C．must D．will