1.Is that his pen?(改为复数) 2.She is my good friend.（改为一般疑问句）
3.That is Cheng Long.（改为一般疑问句） 4.lt is Dave.（改为一般疑问句）
人气：485 ℃ 时间：2019-10-11 17:15:14
解答
are those his pens
is she your good friend
is that Cheng Long
Is it Dave
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