The bridges over the Fuyang River have been rebuilt it possible for boats to sail.A. to

问题补充：

The bridges over the Fuyang River have been rebuilt, it possible for boats to sail.

A. to make

B. making

C. being made

D. to be made

答案：

A. to make

(答案→)B. making

C. being made

D. to be made

解析：此处是现在分词短语作结果状语，表示自然的结果。句意：滏阳河上的桥被重修了，能过船了。