—Whatshouldwedofirstifwewanttodevelopourvillage?  —Alot...

問題詳情：

—What should we do first if we want to develop our village?

   —A lot of new roads _________, I think.

   A. have to build             B. must build          C. must be built

【回答】

C

知識點：情態動詞

題型：選擇題