一道虚拟语气的题3.The old professor gave orders that the experiment          before 6.\x0b A.was finished   B.will finish  C.be finished   D.shall be finished

问题描述:

一道虚拟语气的题
3.The old professor gave orders
that the experiment          before 6.\x0b A.was finished  
B.will finish 
C.be finished   
D.shall be finished

选C
同理,这也是虚拟语气,所以用should be finished ,省略了should 就成了be finished.

C. (should) be finished. 虚拟语气中should 可以省略的情况:1) It is demanded / necessary / a pity + that…结构中的主语从句的谓语动词要用should 加动词原形, should 可省略.2)在宾语从句中的应用在表示命...