---Mum can I go out to play football with Alice?-No you can’t your homework is done.A

问题补充：

---Mum, can I go out to play football with Alice?

---No, you can’t your homework is done.

A. while

B. after

C. until

D. as

答案：

A. while

B. after

(答案→)C. until

D. as

解析：考查连词，not …until 直到……才，句意：妈妈，我可以出去和艾丽斯打篮球吗？不可以，直到你的作业做完了你才可以出去玩。所以选C。