问题

The mobile phone has influenced people’s life a lot since it _________.

A:invents;
B:invented;
C:is invented;
D:was invented;

正确答案是：

同类题型

When did you come back?—An hour agoYouthe computer games

eaching an ________ age, more oftenthan not, children are encouraged, but not forced, “ to leave the nest”

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