I must help Tom clean the room.改为一般疑问句,并作肯定回答 将下列句子改为一般疑问句并做肯定或否定回答 Tom iwas...

Tom cleaned his room on weekends \u6539\u4e3a\u4e00\u822c\u7591\u95ee\u53e5\u5e76\u505a\u80af\u5b9a\u56de\u7b54

\u3000\u3000\u60a8\u597d\uff01Did Tom clean his room on weekends ? Yes,he did .We didn't play tennis on Sunday afternoon ? \uff08\u884c\u4e3a\u52a8\u8bcd\u7684\u7591\u95ee\u53e5\uff1aDid +\u4e3b\u8bed+v.\u539f\u5f62+\u5176\u5b83\uff1f \u5426\u5b9a\u53e5\uff1a\u4e3b\u8bed+didn't +v.\u539f\u5f62+\u5176\u5b83\u3002\u80af\u5b9a\u56de\u7b54\uff1aYes, \u4e3b+did .\u5426\u5b9a\u56de\u7b54:No ,\u4e3b\u8bed+didn't .\u671b\u91c7\u7eb3\uff01\u8c22\u8c22\uff01

Tom iwas iil yesterday. (\u53d8\u4e00\u822c\u7591\u95ee\u53e5\u5e76\u8865\u5145\u4e0b\u9762\u53e5\u5b50 \u6ce8\u610f\uff1a\u505a\u80af\u5b9a\u56de\u7b54\uff09
----was Tom ill yesterday?
----Yes,he_was_.
She had 10 pens.(\u6539\u4e00\u822c\u7591\u95ee\u53e5\u5e76\u8865\u5145\u4e0b\u9762\u53e5\u5b50 \u6ce8\u610f\uff1a\u505a\u5426\u5b9a\u56de\u7b54)
----Did she have 10pens?
---- No ,she didn't .
My mother cleaned the room.(\u53d8\u4e00\u822c\u7591\u95ee\u53e5\u5e76\u8865\u5145\u4e0b\u9762\u53e5\u5b50 \u6ce8\u610f\uff1a\u505a\u5426\u5b9a\u56de\u7b54\uff09
---- Did you mother clean the room?
---- No ,she didn't _.

这是个trick queston 考的是你对must这个词的掌握能力

当must当必须讲时，提问用要用must
这道题里，must 当必须讲，所以一般疑问句为 must i help TOM clean the room？ 肯定回答yes you must

但是当must做推测讲时，例如it must be very expensive
一般疑问句就是is it very expensive？ 肯定回答 yes it is

要想改一般疑问句，就必须知道must的用法
must表示必须，应该。它的的否定式是must't
表示不应该，不准许。
在回答must引导的一般疑问句时，肯定回答用
must，否定回答用needn't表示不必，用不着
，而不用mustn't
如:
Must I do it now
Yes,you must
No, you didn't
其一般疑问句是以must的开头
答案：
Must you help Tom clean the room
Yes,I Must

Do I need to help Tom to clean the room?
Yes, I need to help Tom to clean the room

Must you help Tom clean the room?
Yes,I must

祝你进步

Must I help Tom help clean the room?
Yes,YOU must 。

扩展阅读：we must help the blind ... promise to sb to do sth ... it is a must to do ... cloud music to mp3 ... welcome you to do ... there is no game ... be supposed to ... this war of mine ... mustn t have done ...