But that he came to help me ,I____ .
a) could not have succeeded b)did not succeed
c) could not succeed d)can't but succeed
请问此题考什么语法点呢?
另外我还想问:
But that he came to help me ,I could not have succeeded .是不是可以改写成:
If it were not that he came to help me ,I could not have succeeded .