—It’sdifficulttogettotheothersideoftheriver．—Ithinkabri...

問題詳情：

—It’s difficult to get to the other side of the river．

—I think a bridge ________ over the river．

A．should be built         B．should build             C．will build                 D．has built

【回答】

A

知識點：動詞語態

題型：選擇題