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單項選擇題

The sun heats the earth,（）is very important to living things.

A.that
B.what
C.which
D.where

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A group of （） will come to our school tomorrow.

A.Germany
B.Germans
C.German
D.Japaneses

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He, as well as I,（）a student.

A.be
B.am
C.are
D.is

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