Помогите найти время до субботы просто я не разумею как это

1. Did you write an essay? (past simple)
2. When did you write your essay? (past simple + спец.вопрос)
3. Did you read this novel? (past simple)
4. When did you read this novel? (past simple + спец.вопрос)
5. When did you write the presentation? (past simple + спец.вопрос)
6. when do you cook dinner? (present simple)
7. Where did you cook dinner? (past simple)
8. when did you go to the store? (past simple)
9. when do you usually go to the store? (present simple)
10. when did you do the bug fixing? (past simple)
11. When did you do this job? (past simple)
12. Have you ever eaten an octopus? (present perfect)
13. Have you ever been to him? (present perfect)
14. Have you ever heard him? (present perfect)
15. Do you sometimes go to museums? (present simple)