1.She has few friends,has she?
否定意義的詞
　　（1）當陳述部分有never,seldom,hardly,few,little,barely,scarcely,nothing,none,rarely 等否定意義的詞匯時,后面的反意疑問句則為肯定形式：
　　There are few apples in the basket,are there?
　　He can hardly swim,can he?
　　They seldom come late,do they?
2.That is very interesting,isn't it?
當陳述部分的主語是
　　( 1 )用one 時,后面的疑問句可用one/he.
　　(2)everything,anything,nothing,something時,附加疑問句中主語用it 不用 they
　?。?）this,that,或those,these時,附加疑問句中主語用it和they.
　　（4）everyone,everybody,someone,somebody,anyone,nobody等,附加疑問句中主語一般用he（書面語）/they（口頭語）.
　　(5)不定式,動名詞,其他短語,附加疑問句中主語一般用it.
　?。?）在there be句型中,附加疑問句中主語一般用be/情態(tài)動詞/助動詞+there.