题目内容
---It’s difficult for the villagers to cross the river.
---I think a bridge______ over the river.
---I think a bridge______ over the river.
| A．should be built | B．is being built | C．has been built | D．was built |
A
本题考查的是情态动词的被动语态，其结构为主语+情态动词+be+动词过去分词，故选答案为A
练习册系列答案
相关题目