Question

【题目】—It’s hard for children to cross the river to school.

—I think a bridge over the river.

A. should be built B. was built

C. will build D. is built

Answer 1

【答案】A

【解析】句意：——穿过河去上学对孩子们来说很难。——我认为河上应该建一座桥。这里应用被动语态，结构是be+过去分词；should 应该，后用动词原形；故选A