---Why was Professor Wang unhappy recently?---Because the theory he insisted on___wrong.A.proved B.proving C.being proved D.was proved为什么D不对?

问题描述:

---Why was Professor Wang unhappy recently?---Because the theory he insisted on___wrong.
A.proved B.proving C.being proved D.was proved
为什么D不对?

sth prove +adj. 这是固定用法

直接用proved表被动,如选D,则用was proved to be wrong.