摘要：2009年高考题1. The number of foreign students attending Chinese universities rising steadily since1990. A. is B. are C. has been D. have been 答案 C 解析 本题考查主谓一致和时态.主语是 the number故谓语动词用单数.又因时间状语是since 1997所以用完成时态.

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