相关考题
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单项选择题
The sun heats the earth,（）is very important to living things.
A.that
B.what
C.which
D.where -
单项选择题
This is the problem（）we have no good solution as yet.
A.to that
B.which
C.for which
D.to which -
单项选择题
Last month, he paid a visit to the village（）he had once worked for five years.
A.where
B.which
C.that
D.in that
