问题
选择题
The number of foreign students attending Chinese universities _____ rising steadily since 1997.
A.is
B.are
C.has been
D.have been
答案
答案:C
考查时态和主谓一致。The number of…的数量;作主语时,谓语动词用单数。根据后面的since,可知使用现在完成时。