21. Исправь ошибки. 1) I was went to the camp last summer. 2) The boys didn’t went fishing in summer. 3) You go roller-skating last August. 4) Jane cooked tasty food last night?

1. I went to the camp last summer.
2. The boys didn’t go fishing in summer.
3. You went roller-skating last August.
4. Did Jane cook tasty food last night?

В утвердительном предложении в Past Simple используется вторая форма глагола; после did и didn’t смысловой глагол ставится в начальной форме.