题目内容
用适当的“介词+关系代词”填空。
3. He paid the boy $10 for washing ten windows,most hadn’t been cleaned for at least a year.
3. of which
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题目内容
用适当的“介词+关系代词”填空。
3. He paid the boy $10 for washing ten windows,most hadn’t been cleaned for at least a year.
3. of which