Write the correct word or phrase.

1. I've been having swimming lessons and now I (can / could) swim really well.

2. Please (could / should) I use your mobile phone? Mine doesn’t have any power.

3. Sam (could / ought to) get a job instead of complaining about having no money.

4. Okay, yes - you (can / should) leave five minutes early today.

5. Do you think I (must / should) tell Michael the truth about what happened?

6. I (can’t / couldn’t) read until I was five years old.

7. I’m sorry, but you (can ’t / couldn’t) leave your car there.

8. If you want to pass the exam, you (can / ought to) do some revision.

9. I know John lived in Tokyo, but I don't think he (can / may) speak Japanese.

10. Tracy (can / could) sing really well now that she's had a few lessons.