1. Open the brackets: 1) When Liz (to walk) along the road, she suddenly (to meet) her friend. 2) Jack (to change) already his clothes five times today. 3) My friends (not to walk) in the park yesterday. 4) They (to celebrate) Mother's birthday tomorrow. 5) The pupils (to write) a dictation at 2 o'clock yesterday. 6) The train (to arrive) at 5:24 a.m. 7) The girls (to dust) the furniture for the whole day. She looks tired. 8) When I (to arrive) at home yesterday, Alice (to read) the book which I (to present) her two days before. 9) The boys (not, to understand) what the sports coach (to tell) them about the game now. 10) We (to arrange) the party tomorrow at 5 o'clock. The tickets have already been sent to everyone. 11) Water (to freeze) at 0°C. 12) She (always, to interrupt) me!

Перевод задания: Раскройте скобки.

1. When Liz was walking along the road, she suddenly met her friend.
   Когда Лиз шла по дороге, она вдруг встретила подругу.
2. Jack has already changed his clothes five times today.
   Джек уже пять раз переоделся сегодня.
3. My friends didn't walk in the park yesterday.
   Мои друзья вчера не гуляли в парке.
4. They will celebrate Mother's birthday tomorrow.
   Завтра они будут праздновать день рождения мамы.
5. The pupils were writing a dictation at 2 o'clock yesterday.
   Вчера в два часа ученики писали диктант.
6. The train arrives at 5:24 a.m.
   Поезд прибывает в 5:24 утра.
7. The girls have been dusting the furniture for the whole day. She looks tired.
   Девочки весь день вытирают пыль с мебели. Она выглядит уставшей.
8. When I arrived home yesterday, Alice was reading the book which I had presented to her two days before.
   Когда я вчера пришёл домой, Алиса читала книгу, которую я подарил ей за два дня до этого.
9. The boys don't understand what the sports coach is telling them about the game now.
   Мальчики не понимают, что тренер сейчас рассказывает им об игре.
10. We will be arranging the party tomorrow at 5 o'clock. The tickets have already been sent to everyone.
    Завтра в пять часов мы будем готовить вечеринку. Билеты уже отправлены всем.
11. Water freezes at 0°C.
    Вода замерзает при температуре 0 °C.
12. She is always interrupting me!
    Она вечно меня перебивает!

В № 6 используется Present Simple для расписания; в № 12 Present Continuous передаёт раздражение из-за повторяющегося действия.