37.I'll take down your name and address in case you_____as a witness.
A.are needed B.will be needed
C.be needed D.needed
答案给的A,in case 后做成虚拟语气C项可以吗？

in case “以备，以防”，引导目的性状语从句，从句谓语动词用一般现在时或者should+动词原形，在这儿should不可以省略。所以该题可以是are needed, 也可以是should be needed,但是答案只能是A
should在表示命令、要求、建议等名词性从句的虚拟语气中才可以省略，例：
Mother insisted that John go to bed at 9 o'clock.(宾语从句)
It was required that the crops should be harvested at once.(主语从句)
The suggestion that he be invited was rejected.(同位语从句)
That is their demand that their wages be increased.(表语从句)
个人意见，仅供参考