题目内容
() 2. 当你不确定这是不是一支铅笔时,可以问:
A. This is a pencil. B. Is that a pencil? C. Is this a pencil?
2. C
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题目内容
() 2. 当你不确定这是不是一支铅笔时,可以问:
A. This is a pencil. B. Is that a pencil? C. Is this a pencil?