The building next month will be a modern hospital.A. builtB. being builtC. to be builtD.

问题补充：

The building next month will be a modern hospital.

A. built

B. being built

C. to be built

D. to built

答案：

A. built

B. being built

(答案→)C. to be built

D. to built

解析： to be built表示“将要被建设的”。