一．主语从句

1、Who was responsible for the accident is not yet clear.

2、Why he left so abruptly is not known to any of us.

3、When he’ll be back depends much on the weather.

4、Whether she comes ornot doesn’t concern me.

5、Wherever he once lived is well preserved.

6、It is natural that they should have different views.

7、It was quite plain that she didn’t want come.

8、It’s a pity that he can’t swim.

9、It was a fearful disappointment to your mother that you didn’t come yesterday.10、It happened that she wasn’t in that day.

11、It struck me that we ought to make a new plan.

12、It was rumoured that he was suffering from a tone in the kidney.

13、It is estimated that 25 million school lunches are sold each day.

14、It’s none of your business where I spend my summer.

15、It’s doubtful whether the payment is legal.

16、It was a question whether he should get married.

二．宾语从句

1、We never doubt that he is honest.

2、I can’t imagine what made him act like that.

3、Nobody can tell when she will arrive.

4、Before I came downstairs I had prepared myself very carefully for what I must say.5、You must give it back to whoever it belongs to.

6、Why don’t you bring it to his attention that you’re too ill to go on working?7、I’ve heard it said that you’ve won ascholarship.

8、She has seen to it that all the children are well taken care of.

9、I feel it a terrible thing that my mother should have to toil so endlessly.

三．表语从句

1、The fact is that he didn’t notice the car until too late.

2、The mystery is whether he ever went there at all.

3、The question is why he likes the place so much.

4、The problem is not who will go but who will stay.

5、Your brother’s health is not what it used to be.

四．同位语从句

1、They had to face the fact that the nearest filling station is 30 miles away.2、Have you any idea how soon they are coming?

3、Obviously there was little probability that they would succeed, but they didn’t mind.4、The suggestion that the new rule be adopted came from the chairman.5、There is a feeling in me that it is going to rain.

6、The proposal has been put forward that the flight should be cancelled.