Rewrite the sentences

1. John can’t win races because he’s a slow runner.
   runs
   John can’t win races because he ______________________________.
2. It’s necessary for students to bring books to school.
   have
   Students __________________________ books to school.
3. It’s forbidden to park here.
   can
   You _______________________ here.
4. I can’t swim well.
   bad
   I’m _________________________________________.
5. Mary started working as a secretary ten years ago.
   became
   Mary ____________________________ ten years ago.
6. It wasn’t necessary for Mr. Forest to work because he was very rich.
   have
   Mr. Forest _____________________________ because he was very rich.
7. I don’t like milk but I have to drink it.
   however
   I don’t like milk ____________________________ it.