I am sure I will do it well you give me this chance.A. if B. before C. until D. though

问题补充：

I am sure I will do it well you give me this chance.

A. if

B. before

C. until

D. though

答案：

(答案→)A. if

B. before

C. until

D. though

解析：考查连词的用法。句意“我肯定我会把它做好，如果你给我这个机会的话。”if“如果”；before“在......之前”；until“知道”；though“虽然，尽管”。故选A。