6. Put the sentences into the future and past tense changing the verb to
have and using suitable adverbial modifiers of time: yesterday, tomorrow,
next week, last month, next year, at 5 o’clock, etc.
1. They have a big house in the country.
2. My friend has many interesting books.
3. His mother has a nice garden.
4. She has a good map of London.
5. We have a good dog.
6. I have a beautiful picture.
7. These students have five examinations.
8. His parents have a comfortable flat.
9. John had good work.
10. These pupils have four lessons every day

хорошо. спасибо за помощь.

не за что.Просто меняю глагол вместо ... остаются все слова.

1 they had......last year/will have.....next year2. had....last month/ will have....tomorrow3.had...last summer/will have....next summer4 had...last June/ will have... next June5 had....many years ago/ will have...next month6 had...last week/will have....next week7 had...last Tuesday /will have....next Monday8 had...a year ago/will have....next year9 had...2 years ago/will have.....next year10 had...last week/will have....next Friday