【題目】The mobile phone has influenced people's life a lot since it ________.

A. invents B. invented C. is invented D. was invented

【答案】D

【解析】試題分析:句意:自從3G手機(jī)被發(fā)明,他們已經(jīng)對人們的生活有了很大的影響。since自從……,后加過去時(shí)態(tài)的句子或過去的時(shí)間點(diǎn)。被動(dòng)語態(tài)表示主語是動(dòng)作的承受者,即行為動(dòng)作的對象。被動(dòng)語態(tài)由助動(dòng)詞be+及物動(dòng)詞的過去分詞構(gòu)成。一般過去式的被動(dòng)語態(tài)構(gòu)成wasweretdone,根據(jù)語境故選D

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