№1.
Ate
Knew
Had
Opened
Said
Studied
Cleaned
Watched
Played
Visited
Traveled
Listened
Took
Was (were)
Made
Understood
Read
№2.
1. Came 2. Saw 3. Finished
№3.
1. I didn’t sleep last night.
2. We didn’t invite them to the party.
3. They didn’t have time to shopping.
4. Did you drink coffee?
5. Did he finish his work in time?
6. Did she water the flowers?