Have you ever wondered __________ you can feel the wind but cannot see it? A. why B. how C. what D. ...
2022-09-20 03:44:23 221次 北京师范大学附属中学2017-2018学年高一下学期期末考试英语试卷 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
Have you ever wondered __________ you can feel the wind but cannot see it?
A. why B. how
C. what D. whether
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