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一道选择there is a new problem involved in the popularity of pri

来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/05/09 14:12:14
一道选择
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
第二个空为什么填to be improved?need之后不是用动名词表示被动含义吗?
因为第一个空只能选that 引导同位语从句,所以后一个空也只能用to be improved 了,;improving 也可填上,但顾及第一个空只好选A.