Thereisanewprobleminvolvedinthepo

发布时间：2020-07-11 07:33:20

There is a newproblem involved in the popularity of private cars ________ road conditionsneed ________.













A.that… tobe improved












B.which… tobe improved











C.where…improving











D.when…improving

网友回答

A解析that引导同位语从句，第二空所提供两种说法都正确，没有起到干扰作用。
以上问题属网友观点，不代表本站立场，仅供参考！