---What should we do first if we want to develop our village?---Lots of new roads , I thin

发布时间：2020-08-21 11:24:29

---What should we do first if we want to develop our village?
---Lots of new roads     , I think.
A. must built           B. can build            C. must be built

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解析：此题考查含有情态动词的被动语态的基本结构，情态动词+be+过去分词
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