问题
Nobody knows for sure what effect the global warming have ______ our environment in the long term
A:of
B:with
C:for
D:on
B:with
C:for
D:on
正确答案是：
同类题型
It is rather ______ that we still do not know how manyspecies there are in the world today.
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Our teacher keeps telling us that the futureto the well-educated.
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