There is a new problem involved in the popularity of private carsroad conditions need.A. t

发布时间：2020-08-16 22:02:56

There is a new problem involved in the popularity of private cars    road conditions need    .
A. that；to be improved
B. which；to be improved
C. where；improving
D. when；improving

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(答案→)A. that；to be improved
B. which；to be improved
C. where；improving
D. when；improving
解析：考查同位语从句和固定词组。Need doing=need to be done需要做某事；同位语从句conditions need    .解释名词a new problem
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