He said (that) he wanted to stay at home.
She doesn’t know (that) she is seriously ill.
I am sure (that) he will succeed.
2. 由毗连代词who, whom, whose, what, which和毗连副词when, where, why, how引导的宾语从句。这些毗连代词和毗连副词在宾语从句中充当某个身分。譬喻：
Do you know who (whom) they are waiting foe?
He asked whose handwriting was the best.
Can you tell me where the No.3 bus stop is?
I don’t know why the train is late.
I want to know if (whether) he lives there.
He asked me whether (if) I could help him.
I hear (that) physics isn’t easy.
I think (that) you will like this school soon.
Can you tell me how I can get to zoo?
Please tell me when we’ll have the meeting.
I don’t think (that) you are right.
Please tell us where he is.
Can you tell me how I can get to the railway station?
2. 假如主句的时态是一般已往时，宾语从句只能用相应的已往时态(一般已往时， 已往举办时， 已往未来时，已往完成时)。譬喻：
He asked what time it was.
He told me that he was preparing for the sports meet.
He asked if you had written to Peter.
He said that he would go back to the U.S. soon.
Our teacher said that January is the first month of the year.
Scientists have proved that the earth turns around the sun.