A highway bridge over the river. They hope to finish it next month.A. was builtB. is built

问题补充：

A highway bridge over the river. They hope to finish it next month.

A. was built

B. is built

C. has been built

D. is being built

答案：

A. was built

B. is built

C. has been built

(答案→)D. is being built

解析：考察时态。根据后一句中的next month可知这座桥正在被建，故D正确。