1)强调各自的时候,疑问句主语为she/he/it.
eg:Each of these novels is to be discussed this term,isn't it?
2)强调集体的时候,疑问句主语为we/you/they
eg:Each of us have got a prize,haven't we?
主语为one时,附加疑问句的主语可用one/you。eg:One should learn from others,shouldn't one?
主语为none of,根据主谓一致原则。eg: None of his friends has come,hasn't he?
句型
1.宾语从句
1)主语不是第一人称,主句与疑问句主谓一致。eg:He never said she would come,did he?
2)陈述句为第一人称+think/believe/suppose/figure/assume/fancy/imagine/reckon/expect/seem/feel/bet等表示想法/意见/猜测的动词+宾语从句,从句跟疑问句保存主谓一致。
eg:I imagine that she doesn′t care,does she?
I don′t believe that she knows it,does she?( =I believe she doesn′t konw)
3)如果句型为:It doesn't seem that +宾语从句,从句与疑问句保持主谓一致。
eg: It doesn't seem that he can get it,can he?
2. 主语从句和表语从句
1)主语从句和表语从句的附加疑问句的构成与主句保持主谓一致。
eg: It is surprising that he was the only man qualified for the job,isn′t it他是唯一称职做那项工作的人,很惊奇是吗?
That′s where you are wrong,isn′t it?( 此结构的this/that用it代替)