Question

______ some problems have arisen in the process, we are confident that we can handle them

1. A.
   As
2. B.
   If
3. C.
   While
4. D.
   Since

Answer 1

C
解析：
考查状语从句。As 和 While 都有“虽然”含义都表示让步但是As从句要倒装而 While不用。 虽然在进程中出现了问题但是我们相信我们能处理它们。