Ответ:

Задание 20: Вопросы и ответы

Пример:

What time did he start having a shower? - He started having a shower at 7 o'clock.

What time did he finish having a shower? - He finished having a shower at 10 past 7.

What was he doing at 5 past 7? - At 5 past 7 he was having a shower.