◎ 题干
句型转换.
1. This is my ruler. (改为复数形式)
    ____ ______ my____ .
2. Are those your sisters? (改为单数形式)
    _____ ______your____?
3. He is my grandfather. (改为一般疑问句并作肯定回答)
   _______ ______ ____grandfather?   _______ ______ ____.
4. That is his friend. (改为否定句)
    _______ ______ ____friend.
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“句型转换.1. This is my ruler. (改为复数形式)____ ______ my____ .2. Are those your sisters? (改为单数形式)_____ ______your____?3. He is my grandfather. (改…”主要考查了你对  【可数名词(单数名词,复数名词)】【系动词】【therebe句型】【一般疑问句】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。