All the doctors in the hospital insisted that he badly wounded and that he at onceA. shou

问题补充：

All the doctors in the hospital insisted that he badly wounded and that he at once．

A. should be; be operated on

B. were; must be operated on

C. was; should be operated

D. was; be operated on

答案：

A. should be; be operated on

B. were; must be operated on

C. was; should be operated

(答案→)D. was; be operated on

解析：本题考查动词用法。Insist作“坚持认为”讲，用真实语气；作“坚持要求”讲，用should+ v原形的虚拟语气，should可以省略，故选D。