賓語從句:(that?？墒÷?
1.用that引導(dǎo): I'm sure (that) she will come.
2.用whether/if引導(dǎo):表"是否"(但if不可放在句當(dāng)"是否")
I don't know whether it will be fine tomorrow.
3.用疑問詞引導(dǎo)(what,when,where,which,how,who,whose,why):
He didn't understand why they were laughing.
Do you know who is he?
Do you know where are they going?
Do you know what are they doing?
Do you know which girl is Lucy?
Do you know why he is late for class?
Do you know whether/if it will be sunny tomorrow?

Do you know how to make a model ship?
Do you know when Lucy willcome back?
希望幫到你望采納 謝謝!