Many teachers like surfing the Internet, ________ they may find a lot of useful videos about teachin...
2022-08-29 04:00:52 94次 2019年天津市高三毕业班联考（一）英语试卷 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
Many teachers like surfing the Internet, ________ they may find a lot of useful videos about teaching.
A. which B. where
C. when D. that
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