单项选择题

If it rains, we should not go out, but the sky ______ perfectly clear.

A．is

B．will be
C．was

D．had been
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单项选择题
The number of tigers in this area ______ said to be
A．is; rising

B．are; rising
C．is; raised

D．are; raised
单项选择题
What is the speaker
A．A guide.
B．A visitor.
C．A teacher.
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