Everyone agreed to his suggestion ________ a bridge ________ built across the river．

A.that; be

B.that; will be

C.which; would be

D.as; should be

答案及解析： A

解析：

句意：每个人都同意他的建议——在这条河流上建一座桥。suggestion表示“建议”时，后面的同位语从句也要用虚拟语气，谓语用“should(可以省略)+动词原形”。