Question

Помогите умоляю !!!!

Answer 1

5.Did you go by train?

6. When did you come home after circus?

7.What time did you watch TV yesterday?

в вопросе и отрецании есть did (didn't), а значит глагол ставиться в 1 форме ( V1)

А в утвердительном предложении глагол во 2 форме (V2)

Answer 2

5)Did you go by train?
Yes, I went by train at 5 pm
7) what time did you watch TV yesterday?
I watched TV at 6pm