– May I go to the movies tonight, mum?

   -- You can when you ____ your homework.

A. will finish  B. are finishing    C. will have finished   D. have finished

 —Can I go to the beach with my classmates this afternoon, Mum?

   —You can go where you like      you get back before supper．

A．now that     B．as if                C．as long as       D．even though

28. -- Could you please buy me an MP4 as well as a digital camera, Mum?

-- You can choose     , not both, my dear.

—May I go to the movies tonight, mum?
—You can when you ____ your homework

1. A.
   will finish
2. B.
   are finishing
3. C.
   will have finished
4. D.
   have finished

---May I go to the movies tonight, mum?

---You can when you ____ your homework.

1. A.
   will finish
2. B.
   are finishing
3. C.
   will have finished
4. D.
   have finished