They must work hard ,反意疑问用什么?

来源：学生作业帮编辑：作业帮分类：综合作业时间：2024/11/09 04:39:51

这里应该填needn't they?
下面是一些含有must句子的反义疑问句的情况
陈述句含有情态动词must有两种情况：
must表示“必须”,反意疑问句部分为mustn’t…?/ needn’t…?
He must study hard at English,mustn’t he?/ needn’t he?
You must go home now,needn’t you?/ mustn’t you?
We mustn’t be late,must we
Must表示推测：“一定,肯定” 反意疑问句部分与must后面的动词呼应
You must be joking,aren’t you?
He must be ill,isn’t he
注意：用must对过去的动作推测时,反意疑问句部分的助动词用did或have,而对过去的状态推测,反意疑问句部分的be动词用was:
She must have finished her work,hasn’t she / didn’t she
Jack must have arrived here yesterday,didn’t he
He must have been a policeman,wasn’t he

They must work hard ,反意疑问用什么? 一道反意疑问句You must work hard,_____ you?为什么不是mustn't he said that they must work hard.这里后面的that代表什么? 祈使句用什么反意疑问啊? "He said that they must work hard."为什么这句话用了过去式? webster must be a good student.______?反意疑问句后的疑问部分该用什么作谓语?》 We must ( )(work)hard. You must work hard 【用must和have to的适当形式填空】They（）work very hard when they were yo YOU must have been there before 的反意疑问部分应该是什么 SHE could have They work hard ( ) us. 在做反义疑问句时（如：They must work hard,need they?)时,否定词常见的有什么?什么情况下一