Uzupełnij zdania właściwą formą wyrazu z nawiasu.

1. David was getting on the bus when he realized he ..... (forget) his wallet. 
2. The first time I ..... (see) the movie was last summer. 
3. They didn't hear the phone because they ..... (play) a video game.
4. When your message ..... (arrive), I was talking to Sam.
5. Sorry I missed your call - we ..... (have) dinner.
6. Kate didn't send her application until she ..... (check) it 20 times!