.More patients＿＿　in hospital this year than last year. A. treatedB. have treatedC. had bee

问题补充：

.More patients＿＿in hospital this year than last year.

A. treated

B. have treated

C. had been treated

D. have been treated

答案：

A. treated

B. have treated

C. had been treated

(答案→)D. have been treated

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