题目内容
句型转换
This is a pear tree. (改为复数) ________ ________ pear trees.
答案:These,are
解析:
解析:
This is的复数形式是These are. |
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题目内容
句型转换
This is a pear tree. (改为复数) ________ ________ pear trees.
This is的复数形式是These are. |