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【题目】

2013 浙江嘉兴模拟) David couldn't tell __________ from far away whether the green traffic light meant going straight or turning left.

A. on purpose

B. at random

C. in short

D. for sure

【答案】D

【解析】句意:戴维不能确切地从远处辨别绿色交通信号灯意味着是要直行还是左转。on purpose故意,有意地;at random随意,随机;in short简言之,总之;for sure确切地,肯定。

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