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Commercially packaged caramel apples from the USA were reported to have killed at least 7 people and sickened 32 before July 24, 2015, officials said. Typically, problems arise ______ caution is absent.

A.that.B.what

C.whereD.in which

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书面表达

请你根据以“老人摔倒你会扶吗?”为主题的班会调查结果及你自己的意见给《英语周报》写一篇演讲稿,要点如下:

调查结果

理由

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阅读下面材料,在空白处填入适当的内容(1个单词)或填入括号中单词的适当形式。

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