Нужно вставить for, since или ago! 8. our family haven't heard from five months 9. oh, john! as usual you are late. i've waited for 11 a m 10. he has worked for this april. 11. i haven't spoken to mary . 12. two years bought a car. 13. mr. pembroke doesn't often mow the lawn he hasn't cut the grass . l 4. i have never sailed that journey 15. we have been waiting here an hour

8. Our family haven't heard from him for five months 9. Oh, John! As usual you are late. I've waited for you since 11 a m. 10. He has worked for this company since April. 11. I haven't spoken to Mary  since Christmas. 12. Two years  ago Derry bought a car. 13. Mr. Pembroke doesn't often mow the lawn. He hasn't cut the grass  for ages. 14. I have never sailed again since that journey 15. We have been waiting here now for an hour.