—Mr.Ling,Ihavesomedifficulty          thearticle...

問題詳情：

        —Mr. Ling, I have some difficulty           the article.

        —Remember           it three or four times at least.

        A. to understand; reading

        B. understanding; reading

        C. understanding; to read

        D. to understand; to read

【回答】

C

知識點：動詞和動詞短語

題型：選擇題