Father insisted Tom all his homework before he went to bed.A. finishingB. to finishC. fi

问题补充：

Father insisted Tom all his homework before he went to bed.

A. finishing

B. to finish

C. finish

D. finished

答案：

A. finishing

B. to finish

(答案→)C. finish

D. finished

解析：本题insist后跟的句子为虚拟语气，用虚拟句，从句的动词在虚拟句中应使用动词原形，故本题选C。