Не могу понять как сделать этот номер кто да +

1) we cooked a cake

we didn't cook a cake

did we cook a cake?

2) she liked this film

3) he wanted some apples

4) they tidied the room

they didn't tidy the room

did they tidy the room?

5) she cleaned her teeth

6) we woke up early yesterday

7) they ate fruit

they didn't eat fruit yesterday

did they eat fruit yesterday?

8) we swam

9) I saw

10) she had a car last year

she didn't have a car last year

did she have a car last year?