---Why not join us in the game?---I’d love to but Mother insists that I all my homework

问题补充：

---Why not join us in the game?

---I’d love to, but Mother insists that I all my homework first.

A. finish

B. will finish

C. must finish

D. have finished

答案：

(答案→)A. finish

B. will finish

C. must finish

D. have finished

解析：考查insist用法。当insist表示坚持要求做某事的时候，后面的宾语从句使用虚拟语气should+动词原形，should可以省略。句意：妈妈坚持要求我先完成家庭作业。根据惊讶可以本题中的insist表示坚持要求做某事，故使用虚拟语气，省略了should.A正确。