79 Fill in "at", "in" or "on" as in the example: 1. Saturday. 2. July. 3. 1984. 4. March 25th. 5. Friday. 6. summer. 7. the morning. 8. 9 o'clock. 9. Christmas. 10. September 28th, 11. 1991. 12. August 29th. 13. Thursday afternoon. 14. the evening. 15. autumn. 16. half past two. 17. Monday morning. 18. Easter. 19. 10 o'clock. 20. winter. 21. noon.

Решение:

Заполняем пропуски предлогами 'at', 'in' или 'on' в зависимости от времени, даты или дня недели.

1. on Saturday.
2. in July.
3. in 1984.
4. on March 25th.
5. on Friday.
6. in summer.
7. in the morning.
8. at 9 o'clock.
9. at Christmas.
10. on September 28th,
11. in 1991.
12. on August 29th.
13. on Thursday afternoon.
14. in the evening.
15. in autumn.
16. at half past two.
17. on Monday morning.
18. at Easter.
19. at 10 o'clock.
20. in winter.
21. at noon.

Ответ: 1. on, 2. in, 3. in, 4. on, 5. on, 6. in, 7. in, 8. at, 9. at, 10. on, 11. in, 12. on, 13. on, 14. in, 15. in, 16. at, 17. on, 18. at, 19. at, 20. in, 21. at.