1.Пишешь didn't и глаголы без окончания "ed"
1)didn't cook
2)didn't work
3)didn't use
4)didn't climb
5) didn't open
2. 1) My mum didn't listen music yesterday
2)My classmates didn't walk near the school yesterday.
3)I didn't study math yesterday
4)My.....(допишешь) didn't play football yestarday
5)This class didn't start making a poster yesterday
3. 1) Did... help
Yes.she did.
2)Did... finish..
Yes,they did.
3)Did....start
No,the didn,t
4)Did...enjoy
Yes,I did.
5)Did ....rain
No,it didn,t
4.2) Did you use a computer last night?
3)What did you study yesterday?
4)Did you visit another country on holiday?
5)When did you finish Until 5?
(ответы напишешь сам(а),там легко)