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题目
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

提问时间:2020-07-27

答案
1.isn't it(前否后肯)
2.aren't they(前否后肯)
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