在句子中起宾语作用的从句叫做宾语从句.宾语从句分为三类：动词的宾语从句,介词的宾语从句和形容词的宾语从句.
1、动词的宾语从句 放在动词后面
Wang Hai told me why he didn't go cycling yesterday afternoon.
Can you tell me who else is going to be on duty today?
Tom's mother asked him if he want to try something new.
2、介词的宾语从句 放在介词后面
I didn't listen to what my mother said because my brother was making a noise.这里what my mother said 是 个句子 作listen to 的宾语,这里to 是介词
3.形容词的宾语从句 放在形容词后面
I'm afraid that I have made a mistake.
afraid是形容词,I have made a mistake做afraid的宾语