反意疑问句英语题

你好:
1. He must be at home now,_?
A.must be B.mustn't be C.is he D.isn't he

D.解析: must在表"推测"时，根据其推测的情况来确定反意疑问句。如:
He must be there now, isn't he?
It must be going to rain tomorrow, won't it?
陈述部分有must 的疑问句，疑问部分根据实际情况而定。如:
He must be a doctor, isn't he?
You must have studied English for three years, haven't you? / didn't you?

2. he must have been together with his family last week,_?
A.didn' he B.wasn't he C.hasn't he D.isn't he
C.解析:Have/has/had/构成现在完成时时也应看成助动词,翻译疑问句需要借助于助动词do/does/did来完成:
He has been to Beijing ,hasn`t he ?

如果不是看得很明白你也可以看看这个:
http://www.pkuschool.com/ask/q.asp?qid=17795
还有这个http://www.xuexiku.cn/htm_g