Her friend' name is Helen.(变一般疑问句,并做否定回答）；These are (my English books).对括号内的部分提问；Jack and Mary are my two cousins.(一般疑问句,并做否定回答）
人气：459 ℃ 时间：2019-08-21 12:19:11
解答
Is her friend's name Helen? No,it isn't.
What are these?
Are Jack and Mary your two cousins? No,they aren't.
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