单项选择题

______ there is something else to discuss, I will declare the meeting closed.

A．As
B．Though
C．Unless
D．While
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The tree was cut ______. A) down B ) in C) off D) ont
The tree was cut ______. A) down B ) in C) off D) ont
单项选择题
That war ______ 2 years.
A．stayed
B．finished
C．lasted
D．completed
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