Bad luck!I'll ________ walk home because I lost the key to my bike．

1. A.
   be able to
2. B.
   have to
3. C.
   need to
4. D.
   must

 —Bad luck! It’s too late!

  —It doesn’t matter. The movie __________ for only a few minutes.

A. begun                B. has begun            C. has been on

--- Bad luck! It’s too late.

--- It doesn’t matter. The concert       for only a few minutes. You can’t miss it.

 —Bad luck! It’s too late.

—It doesn’t matter. The concert       for only a few minutes. You can’t miss it.