单项选择题

__________ we have enough evidence. we can’t win the case.

A．Once
B．As long as
C．Unless
D．Since
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单项选择题
John incited about 40 people to his wedding, most of __________ are family members.
A．them
B．that
C．which
D．whom
单项选择题
- What are you doing this Saturday- Im not sure. but I __________ go to the Rolling Stones concert.
A．must
B．would
C．should
D．might
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