We had thought the examination would be difficult,but it __easy.A turned B resulted CappearedDproved

We had thought the examination would be difficult,but it __easy.A turned B resulted CappearedDproved
We had thought the examination would be difficult,but it __easy.A turned B resulted Cappeared
Dproved

We had thought the examination would be difficult,but it __easy.A turned B resulted CappearedDproved
A.turned
在这儿相当于turn out to be,意思是"结果..."
我们本来认为考试将很难,结果它很简单.

A，
result为不及物动词，appear出现，prove证明

A
turn，turn out to be 结果
turn系动词+adj.