问题描述:
–Why is Professor Johnson unhappy these days?
--Can’t you see it clearly?The reason is that what he insisted on ___ wrong.
A.proving B.to prove C.proved D.being proved
--Can’t you see it clearly?The reason is that what he insisted on ___ wrong.
A.proving B.to prove C.proved D.being proved
问题解答:
我来补答展开全文阅读