④must
⒈命令,要求(翻译为一定,必须)
eg.You must finish your work first.
⒉★推测★只能用于肯定句
▲注意 must 只肯
eg.He must be playing volleyball. He must have seen the film. ▲⒊翻译为 非要,表现出不耐烦的语气(这点很重 要)
Must you disturb me again and again?
你非要一次又一 次地打扰我吗?
⒋这是个初中的点 —May I use your computer?
肯定回答—Yes,you can/may.
否定回答—No,you mustnˊt.
—Must I hand in the paper?
我一定要交这试卷吗?
否定回答—No,you neednˊt.