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        1. Tom has much difficulty _______ Chinese so he often asks me ______ help

          A.to understand; with

          B.understanding; of

          C.to understand; for

          D.understanding; for

           

          【答案】

          D

          【解析】本題符合結(jié)構(gòu),主語+have some difficulty in doing sth,表示在做某件事方面有困難,向某人要什么東西,用ask sb for sth,故選答案為D

           

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