It is uncertain ________ side effect the medicine will bring about, although about two thousand pati...
2022-10-27 21:23:34 37次 2014-2015学年浙江省高三上学期回头考试英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
It is uncertain ________ side effect the medicine will bring about, although about two thousand patients have taken it.
A. that B. what C. now D. whether
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