将下列的句子变为一般疑问句并作肯定和否定回答1.Itishiscomputer.2.HeismybrotherTom.
3.IamanEnglishteacher.
4.Theyaremysisters.
5.Thesearemybooks.
6.Thatisabirdonthetree.
7.Sheisveryclever.
8.Wearegoodfriends.
9.Thisismynewbike.
10.TomandLilyareFromEngland.
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