Here are the correct tenses or forms of the words in brackets:

1. Children used (1. play) **to play** outdoors with things they found, like stones or feathers.
2. She (2. come) **came** back home after she (3. finish) **finished** her work.
3. I am not sure where (4. go) **to go** on summer holiday.
4. He wishes he (5. learn) **could learn** English well.