求助 解答

14. Several senior officials spoke to the press on condi­tion that they not be named in the story.

(A) that they not be named

(B) that their names will not be used

(C) that their names are not used

(D) of not being named

(E) they will not be named

新东方old book里的，key A

比较迷惑，看上去是一个状语从句， 但是正确答案里没有动词。

请各位达人赐教。先谢过了。

请问什么时候才能省略should？