将这几个句子改为单、复数句
1.These are my parents.
______ _______ _______ my____
2.That boy is my sister‘s friend
_______________ _________are my sister's friend
人气：199 ℃ 时间：2020-02-06 06:37:09
解答
1.This is my parent.
2.Those boys are my sister's friends.
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