your help how could I have passed the difficult interview!A. But forB. Thanks toC. Owing

问题补充：

your help，how could I have passed the difficult interview!

A. But for

B. Thanks to

C. Owing to

D. As to

答案：

(答案→)A. But for

B. Thanks to

C. Owing to

D. As to

解析：四个选项分别表示要不是、由于、因为和至于，根据题意选A，要不是你的帮助，我还不能通过这次艰难的面试。