英语造句用must（表必须和推测两种用法）,must have been（对过去情况推测）,can't(表能力和推测两种

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/08 04:28:10

英语造句
用must（表必须和推测两种用法）,must have been（对过去情况推测）,can't(表能力和推测两种用法) can't have been（对过去情况推测）各造一句

You must finish your homework before you play football.
The backpack must belong to Mary,because her name is on it.
She must have been a docter,she knew a lot about medicine.
I can't swim,because I'm afraid of water.
Mr.black can't be at home,he has been to America.
He can't have been this city,he didn't know anywhere of the city

英语造句用must（表必须和推测两种用法）,must have been（对过去情况推测）,can't(表能力和推测两种反义疑问句must 表对现在的推测意思是一定must表对过去推测怎么用求【全部】关于以上信息的用法 must 表推测的用法 must表推测的用法我以前记得must be一定和can't be一定不是和may be或许（表推测）我还见过完成时态请问"must"的否定形式是不是不能表推测?有木有"mustn't have done "滴形式?推测和虚拟是英语中关于推测的用法.比如：must have done是对过去的猜测要情态动词的过去未来现在的推测常用词组不是must做情态动词对过去推测用must have done,又是进行时,用must have must be表推测（单选）英语中should不能表推测推测只用can must might must be,may be,can't be 表推测的意思并造句 must 与should表推测 could only have done表示对过去的推测,只可能...,是否等于must have done?