改错：(2018·*高考)Apossibilityofself­drivingrobotcarshasoft...

问题详情：

改错：(2018·*高考)A possibility of self­driving robot cars has often seemed like a futurist's dream, years away from materializing in the real world.

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【回答】

A→The　介词短语of self­driving robot cars作possibility的后置定语，起修饰限定的作用，故将A改为The，表示特指。此处特指无人驾驶机器人汽车的可能*。

知识点：冠词

题型：短文改错