题目内容
The mobile phone has influenced people’s life a lot since it _________.
| A．invents | B．invented |
| C．is invented | D．was invented |
D
解析试题分析：句意：自从手机被发明以来，已经很大的影响了人们的生活。根据句意，手机早已被发明，所以用一般过去时的被动语态，故选D。
考点：考查一般过去时的被动语态。
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