问题
选择题
The mobile phone has influenced people's life a lot since it __________.
A．invents
B．invented
C．is invented
D．was invented
答案
答案：D
结合本题场景以及主句的时态可知，从句要用一般过去时的被动语态。故答案为D。
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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
结合本题场景以及主句的时态可知，从句要用一般过去时的被动语态。故答案为D。
