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题目
1 I an OK .(该改为一般疑问句,并作否定回答)
2 The pancil is black(同上)
3 These are my sisters.(同上)
4 Guo peng is my beother.(同上)
5 They are on the sofa.(同上)

提问时间:2021-01-02

答案
1.Are you OK?No,I'm not.2.Is the pencil black?No,it isn't.3.Are these your sisters?No,they aren't.4.Is Guopeng your brother?No,he isn't.5.Are they on the sofa?No,they aren't.
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