新概念英语①He can't have been ill.(改肯定句)②He must have been sleepi

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/07/08 18:36:16

新概念英语
①He can't have been ill.(改肯定句)
②He must have been sleeping.(改否定句)
③She must have been a doctor.(改否定句)
④They can't have been watching TV.(改肯定句)
⑤她那时不可能在唱歌.
她那时一定在画画.
⑥他现在不可能在扫地.
一定在看世界杯.

1.He must have been ill.
2.He can't have been sleeping.
3.She can't have been a doctor.
4.They must have been watching TV.
5.She can't have been singing then.
She must have been drawing then.
6.He can't be sweeping the floor,he must be watching the World Cup now.

He can't have been ill. He must have been ill,___ he? He can't have been ill是现在完成时? he can't have been Danish.he must have been Swedish. He can't have been.He must have been.不是说单三用has吗? he can't haue been a dcntist.he must have been a doctor. 英语：助动词的问题he must（can't may等） have been asleep,就有两个助动词,must , Edison must have been very clever,wasn’t he? He must have been ill,or he ______ to the party last night. He must have been ill,or he ( )to the party last nigjt He must have been ill,____?Yes ,otherwise he wouldnt be abse 英语中反义疑问句he must have been there before ,hasn't he 和he must h