______ is known to us is that tobacco contains nicotine and other harmful products, so you should gi...
2022-12-05 14:09:42 102次 2014届山东枣庄滕州一中高三10月第一次单元测试英语卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
______ is known to us is that tobacco contains
nicotine and other harmful products, so you should give up smoking.
A.As
B.It
C.What D.Which
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