题目

单项选择，从每小题所给的A、B、C、D四个选项中选出可以填入空白处的最佳答案。 —Look! There is a monkey eating ________ apple in the tree.  —En, ________ monkey is very cute. A. a; a               B. a; the              C. an; an             D. an; the 答案：D

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