摘要：40．A．since B．as C．while D．unless
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____________ the weather has improved, the game will be held as planned.
A．While B．Since C．If D．Unless
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_________ I admit that there are problems, I don’t agree that they can not be solved．
[ ]
A．
Since
B．
As
C．
While
D．
Unless
_________ I admit that there are problems, I don’t agree that they can not be solved．
[ ]
A．
Since
B．
As
C．
While
D．
Unless