3. ПОСТАВЬТЕ ГЛАГОЛЫ В ПРОШЕДШЕЕ ПРОДОЛЖЕННОЕ ВРЕМЯ 17. Mother (to watch) TV when he arrived. Mother was watching TV when he arrived. 18. Tom (to play) computer games at 9 pm yesterday. 19. Bob and Mark (to read) magazines when their father came. 20. She (to send) e-mails until 10 pm last night. 21. His father (to recover) in hospital for three weeks after his fall.

Решение:

1. Mother (to watch) TV when he arrived. Mother was watching TV when he arrived.
2. Tom (to play) computer games at 9 pm yesterday. Tom was playing computer games at 9 pm yesterday.
3. Bob and Mark (to read) magazines when their father came. Bob and Mark were reading magazines when their father came.
4. She (to send) e-mails until 10 pm last night. She was sending e-mails until 10 pm last night.
5. His father (to recover) in hospital for three weeks after his fall. His father was recovering in hospital for three weeks after his fall.

Ответ: was watching; was playing; were reading; was sending; was recovering.