The number of foreign students attending Chinese universities ______ rising steadily in the past ten years.
A、
was
B、
were
C、
has been
D、
have been
【正确答案】
C
【答案解析】
考查时态和主谓一致。根据“in the past 10 years”确定此处用完成时；The number of...作主语时，谓语动词用单数，故选C。
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