Use had or hadn't to complete the following:

1. Kenneth is so stupid. He phoned his teacher at school yesterday to say he couldn't come to school because he _________________ (lose) his voice!

2. A doctor _____________ (just give) a boy an injection in his arm. He was about to put a bandage on his arm when the boy said, “Would you mind putting the bandage on my other arm, doctor?” – “Why? I'm putting it over your vaccination so that the other boys will know not to bang into it.” – “You don't know the boys in my school, doctor!”

3. “Mum! Mum! Dad's fallen over a cliff.” – “Is he okay?” – “I don't know. He
__________________ (not stop) falling when I left.”