Mr. Smith insisted that his book within three days.A. returnedB. would be returnedC. shoul

问题补充：

Mr. Smith insisted that his book within three days.

A. returned

B. would be returned

C. should return

D. be returned

答案：

A. returned

B. would be returned

C. should return

(答案→)D. be returned

解析：考查虚拟语气。insist后跟that引导的宾语从句，当insist意为“坚持认为”时，宾语从句不用虚拟语气；当意为“（坚决）要求”时，宾语从句用虚拟语气，即：should+动词原形，should可省略。句意：史密斯先生坚持要求他的书在三天之内归还。A、C未用被动，B项would不对，排除A、B、C。故选D。