-The 3G mobile phone has influenced people’s life a lot since it A. invents B. invented C. is invented D. was invented 题目和参考答案——青夏教育精英家教网—

题目内容

—The 3G mobile phone has influenced people’s life a lot since it ___

A. invents B. invented

C. is invented D. was invented

【解析】

试题分析：句意：自从3G手机被发明，他们已经对人们的生活有了很大的影响。since自从……，后加过去时态的句子或过去的时间点。被动语态表示主语是动作的承受者，即行为动作的对象。被动语态由“助动词be＋及物动词的过去分词”构成。一般过去式的被动语态构成was／were＋tdone，根据语境故选D

考点：考查被动语态的用法。

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