单项选择题The sun heats the earth,()is very important to living things.

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


您可能感兴趣的试卷

你可能感兴趣的试题

1.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

3.单项选择题Mr. Liu,()at university in Changchun, works at Changhou Company now.

A.whose wife I met
B.I met whose wife
C.I met his wife
D.his wife I met

4.单项选择题Let's go to the cinema,()?

A.will you shan‘t we
B.shan‘t we
C.don‘t we
D.shall we

5.单项选择题He seldom does his homework at school on weekdays,()he?

A.doesn‘t
B.isn‘t
C.does
D.is

6.单项选择题You like playing football,()you?

A.do
B.didn‘t
C.did
D.don‘t

7.单项选择题There wasn't any paper in the box,()?

A.wasn‘t there
B.was there
C.wasn‘t any
D.was any

8.单项选择题I don't think he will be back in an hour,()?

A.doI
B.won‘t he
C.don‘t I
D.will he

9.单项选择题Somebody asked her,()

A.did he
B.didn‘t they
C.didn‘t he
D.did they

10.单项选择题Silk()by Chinese for thousands of years now.

A.has used
B.has been used
C.was used
D.is used