最新1主语从句练习及答案

-----好资料学习主语从句练习单项选择题

1. _____ as much as one-fifth of all timber harvested is not used.

B. The estimate A. The estimate

C. They are estimated

D. It is estimated that

2. _____ was once regarded as impossible has now become a reality.

A. That

B. Which

C. Who

D. What

3. _____ we have achieved is attributed to the guidance of our parents.

A. Whoever

B. Whatever

C. However

D. That

4. _____ you say now can't make up for what you've done.C. However D. That

A. No matter

B. Whatever

5. Although _____ happened in this developed country sounds like science

fiction, it

could occur elsewhere in the world.

A. which

B. what

C. how

D. it

6. _____ she had forgotten to take her notebook.

A. That occurred to her

B. She occurred that

C. To her that occurred

D. It occurred to her that

7. I am sure that _____ she said is wrong.

A. which

B. all

C. this

D. what

8. We lost our way in the forest, and _____ made matters worse was that it was

getting dark.

A. that

B. which

C. it

D. what

9. _____ occurred to him that he had forgotten to lock the door when he left

home.

A. This

B. It

C. That

D. These

10. _____ or not is still uncertain.

coming B. If he is coming A. He's coming C. That coming D. Whether he's be able to come.

he'll11. It's _____

C. doubt it

D. doubtful whether B. doubtful A. doubt whether

12. It is _____ that the bridge has existed for more than three centuries .

A. appeared

B. risen

C. said

D. born

13. _____ he saw both surprised and frightened him.

A. That

B. When

C. What

D. Which

14. _____ is a spell of warm sunshine.

B. What all we need A. What do we all need.

D. What we all need C. What we need

15. _____ is a pity that he should feel so upset.

A. What

B. That

C. He

D. It

16. _____ a spoonful of soil can tell us so much about the structure and

early history of the moon.

. Quite remarkably A. Remarkable B C. It is remarkable that D. It is remarkable

17. _____ you nominate will be elected.

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A. Who

B. Which

C. Whomever

D. That's

18. _____ book you borrow must be returned within a week.

A. What

B. Which

C. Whichever

D. That's

19. _____ is troubling me is that I don't have much experience in

international commerce.

A. It

B. That

C. Which

D. What

20. _____they wil go there to try another experiment has not been decided

yet.

A. Whether

B. If

C. About whether

D. Why

根据提示，完成句子。

1.__________________________________ hasn't been decided yet.(pick)

谁将去接他还没有确定。

2.__________________________________ remains

unknown.(finish)

我们是否能按时完成工作还不知道

3._____________________________________ is none of my business.(like)

你喜不喜欢他都与我无关。

4._________________________________________ is being discussed.(abroad)

他将何时出国正在讨论之中。

5.____________________________ in learning English is enough practice.(matter)

英语学习中最重要的是足够的练习。

6.It worried her a bit

______________________________________________.(turn)