2. 外语
  3. ______often I try, I cannot find the answer.

______often I try, I cannot find the answer.

admin2012-06-10  49
问题 ______often I try, I cannot find the answer.
选项 A、Although
B、Whatever
C、As
D、However
答案D
解析 根据题干，主从句之间存在着让步关系，并且所填词要修饰often，只有[D]However符合题意，因此为答案。
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