题目内容
【题目】The main problem with the road is ________the road conditions need________.
A.that; to be improved
B.which; to be improved
C.where; improving
D.when; improving
【答案】A
【解析】由句子结构可知,从句中不缺成分,这是一个同位语从句,说明名词problem,意思是“问题就是路的质量需要提高”。conditions与improve之间为被动关系,故用doing或to be done即可。
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