— 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
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科目：初中英語 來源：0112 期末題 題型：單選題

— 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

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