Today， computers are really helpful. They ______ everywhere. A. use B. are used C. usedD. were used
2022-11-15 23:25:09 44次 2017届北京市延庆区九年级上期末考试英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
Today， computers are really helpful. They ______ everywhere.
A. use B. are used C. usedD. were used
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