1.what time did you left/leave for school this morning?2.They didn`t go/ didn`t went to the theatre last night.3. I visited/not

1. What time did you left/leave for school this morning? — What time did you leave for school this morning?
2. They didn`t go/ didn`t went to the theatre last night. — They didn`t go to the theatre last night.
3. I visited/not visited.— I visited/not visited.
4. We have/had a picnic last weekend. — We had a picnic last weekend.
5. There wasn`t/weren`t many shops here thirty years ago. — There weren`t many shops here thirty years ago.
6. She wrote/write a letter to her friend yesterday. — She wrote a letter to her friend yesterday.