Fewer patients ________ in People’s Hospital this year than last year．

Fewer patients ________ in People’s Hospital this year than last year．

A.are treated

B.have treated

C.have been treated

D.treat

答案及解析： C

解析：

patients与treat之间是被动关系，应排除B、D两项；一般现在时表示普遍的或习惯性的动作，应排除A项。