It has been ____ that the food people eat affects their health.
A、proving
B、prove
C、proves
D、proved
【正确答案】：D
【题目解析】：It has been proved 已经被证实，要使用被动语态，因此选D
It has been ____ that the food people eat affects their health.
- 2024-11-05 20:02:40
- 英语（高升专）(c0003)