Many accidents by careless drivers last year. A. are caused B. were caused C. have caused D. will cause 题目和参考答案——青夏教育精英家教网—

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Many accidents ______ by careless drivers last year.

　　A. are caused B. were caused C. have caused D. will cause

【答案】

【解析】本题是对被动语态的考察，主语accidents与谓语动词cause是被动关系，而且整体时态从yesterday可知是一般过去时。

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What do you do if you're stranded（处于困境的）on a lonely island? Surely you need to find a way to get in touch with the outside world. Your best chance of doing this is to draw the attention of a passing plane.

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　　I "I am badly hurt."

　　X" I am unable to move from here."

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1. Which picture means "it's not safe land"?