问题
The number of foreign students attending Chinese universities ______ rising steadily since 1990.
A:have been
B:are
C:has been
D:is
B:are
C:has been
D:is
正确答案是：
同类题型
Where is Mr. Zhao —He _________ to Mount Fanjing. He’ll come back _______ a week.
I wish I what to do. width=”143″ valign=”top” style=”width:107.1pt;padding:0cm 5.4pt 0cm 5.4pt”
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