Mr. Black has been teaching English in a middle school _____ he came to China. A. for ever B. ever s...
2022-11-15 15:48:16 176次 2014-2015学年天津滨海新汉沽第五中学高一上期中英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
Mr. Black has been teaching English in a middle school _____ he came to China.
A. for ever B. ever since
C. ever before D. long before
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