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1.You must be quiet in my room.
2.You mustn’t shout at me.
3.You must help me to do my homework in my room.
4.You must share everything with me.
5.You mustn’t see my computer.
6.You must be nice to me!
7.You must say you are very beautiful to me in my room.
ask for sth 请求，要求某样东西
Can I ask for some food?
She is asking for our help!
ask sb. to do sth. 请某人做某事，让某人做某事
Ask him to read this newspaper.让她读一下这份报纸。
