Доповнити речення, використовуючи минулий доконаний час

1. Why didn't you want to watch the film? _____ you ____ (see) it before?
2. Sally was sorry because she _______ (to forget) her dad's birthday.
3. After Ivan _____ (to spend) his holiday in Italy he wanted to learn Italian.
4. ______ your friends _____ (to study) German before they went abroad?
5. My parents were hungry because they ____ (not to eat) in the morning.
6. His phone didn't work because he ______ (not to charge) it.