题目

单项选择；从每小题A、B、C、D中选出一个能填入句中空白处的最佳答案。 The presidents of China and the USA had ________ interview a short time ago. —And  it was ________ great success.  A. an; /      B. the; a     C. an; a     D. the; / 答案：C

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