单项选择题

We shall ask for samples________ and then we can make our decision.

A．to be sent
B．being sent
C．to sent
D．to have been sent
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单项选择题
_________he says or does won’’t make me change my mind at all.
A．Whatever
B．However
C．Which
D．How
单项选择题
Mr. Smith, together with his wife and children,_________ going to the party this weekend.
A．am
B．is
C．are
D．will
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