摘要：22．The sun heats the earth, is very important to living things. A．that B．which C．what D．of which
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The sun heats the earth, ___________ is very important to living things.
A．that B．what C．which D．where
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The sun heats the earth, ____is very important to living things.
A．that B．which C．what D．of which
查看习题详情和答案>>The sun heats the earth, ______ is very important to living things.
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A．that
B．what
C．which
D．where