单项选择题

We can find more and more grey wolves in Alaskea.

A． Right
B． Wrong
C． Doesn't say
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单项选择题
There are fewer grey wolves in Europe than in U.S.
A． Right
B． Wrong
C． Doesn't say
单项选择题
Stamps are used for ______ letters.
A． sending
B． writing
C． carrying
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