Modals of Deduction

Name Surname

1. I'm sure she has gone on holiday.

2. I'm certain he doesn't know the secret.

3. I'm certain Mike hasn't got a new car.

4. I'm sure Susan has paid the phone bill.

5. I'm sure they don't live here.

6. I'm sure they left the party early.

7. I'm certain he didn't call me.

8. I'm certain Marie sent you a birthday card.

9. I'm sure she has been keeping secrets fro me.