如题所述
that
if /whether 是否
when /why /which /where /who/whose/whom/how 等
注意宾语从句的语序是陈述句语句。
Can you tell me what the boy is?
I want to know if he will come tomorrow.
He says that he will go to Beijing tomorrow.
Can you tell me where the nearest post office is？
Do you know who the man over there is?
I think that he is a good doctor.
Do you konw who she is?
He asked me why I was late yesterday.
She wanted to know when her son had finished his homework.
Could you tell me how we can reach there in time?
He didn't know whom he helped just now.
用作宾语的从句叫做宾语从句。注意宾语从句用陈述句的语序，be、have等助动词都置于主语之后。
He told us that he felt sick.
I don't know whether it is convenient for you to drive me home.
I don't know if he will buy the car.
Who or what he was, she never learned.
I don't know what this is.
I don't understand why they didn't come.
You may do what you will.
I should like to see where you live, Jon.
比如及物动词后面是可以接宾语的，那么就可以这样造句
I know that he is back 我知道他回来了
比如介词后面接宾语，如
I believe in what you said 我相信你所说的话
比如有些词后面可以接双宾语，如
I will give her what she wants 我会给她想要的东西
回答如下：
that: I know that he is a farmer from China.
whether / if : I wonder whether / if I can go with you.
what: That depends on what you will do.
which: I don't know which class he is in.
where: Can you tell me where you live?
how: He asked me how I was getting on with my work.
when：No one knows when she will start out.
