问题
句型转换
把下列句子变成复数形式。
①This is my sister.
__________________________________
②That is his brother.
__________________________________
③What is this?
__________________________________
④Is this your friend?
__________________________________
⑤That isn't a book
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答案
①These are my sisters.
②Those are his brothers.
③What are these?
④Are these your friends?
⑤Those aren't books.