Beijing, ______ capital of China, has ______ long history.

--Let’s finish off the rest of the cake.

--None for me, thanks. I _____ more than enough.

      A. had        B. will have        C. have had     D. am having

-________ I finish off the milk, Mum?

-I'm afraid you ________．It's good for your health．

1. A.
   Can…can't
2. B.
   May…may not
3. C.
   Must…needn't
4. D.
   Must…must

--Let’s finish off the rest of the cake.
--None for me, thanks. I _____ more than enough.