1. (+) They ate hamburgers.
(-) They didn't eat hamburgers.
(?) Did they eat hamburgers?
2. (+) Nelly won a trophy.
(-) Nelly didn't win a trophy.
(?) Did Nelly win a trophy?
3. (+) Sima swam in the river.
(-) Sima didn't swim in the river.
(?) Did Sime swim in the river?
4. (+) Vova took the camera.
(-) Vova didn't take the camera.
(?) Did Vova take the camera?
5. (+) Anna visited her aunt.
(-) Anna didn't visit her aunt.
(?) Did Anna visit her aunt?
6. (+) Tanya had supper.
(-) Tanya didn't have supper.
(?) Did Tanya have supper?