1.Jack is too young to look after himself,____?isn't he?还是 is he?2.Five-year -old children are too young to go to school,______?aren't they 还是 are they
问题描述：
1.Jack is too young to look after himself,____?
isn't he?还是 is he?
2.Five-year -old children are too young to go to school,______?
aren't they 还是 are they
答
isn't he 因为否定是对后面句子成分否定，所以还是用isn't
答
sn't he?
aren't they？
答
1.isn't it(前否后肯)
2.aren't they(前否后肯）
如果还有什么不明白可以来问我
答
is he
are they