The mobile phone has influenced people’s life a lot since it _______.
A．inventsB．invented
C．is inventedD．was invented
D

試題分析：句意：自從手機(jī)被發(fā)明以來，他已經(jīng)太多地影響了人們的生活。Since引導(dǎo)的從句主句用完成時(shí)從句用一般過去式，根據(jù)題意可知用被動(dòng)語態(tài)，根據(jù)句意故選D
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