— What should we do first if we want to develop our country? — A lots of roads , I think. [ ]A. have

题目简介

— What should we do first if we want to develop our country? — A lots of roads , I think. [ ]A. have

题目详情

— What should we do first if we want to develop our country?
— A lots of roads           , I think.
[     ]
A. have built
B. must be built
C. must build
D. have to build
题型:单选题难度:中档来源:0112 期末题

答案

B

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