The workers are busy _______ windows to the new building these days. A. fix B. fixed C. fixing D. to...
2022-11-11 10:03:59 133次 2017年初中毕业升学考试（上海卷）英语（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
The workers are busy _______ windows to the new building these days.
A. fix B. fixed C. fixing D. to fix
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