22．didn't he．主语谓语动词是think，believe等动词时，其附加问句部分的谓语动词要与从句谓语动词一致，但其它的动词还是要和主句谓语动词一致。

21．isn't there

20．doesn't he．注意此句中的need的是实意动词。

17．won't they 18．hadn't we 19．hasn't it

14．shall we 15．Sall I 16．aren't you

13．will you/won't you

12．mustn't you

11．didn't he．注意nearly没有否定含义。

10．isn't he．must表猜测，意为“一定”。

9．did he