in case后选哪个？
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 。
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