Exercise 1. Выберите правильный вариант ответа: 1. I was brushing my teeth (when/while) my sister was making tea. 2. He was riding a horse (when/while) the car drove to the stable. 3. Sue was walking along the path (as/while) it started to rain. 4. You were washing the dishes (as/while) I was drying them. 5. Kate was speaking to the doctor (when/while) her mobile telephone rang. 6. We were discussing the film (as/while Mary) was looking through some magazines. 7. The waiter was carrying the tray (when/while) he dropped a glass. 8. Sam was crossing the road (when/while) he saw his friend at the bus stop. 9. Lin and Wendy were preparing for the test (as/while) the postman knocked at the door. 10. The child was eating soup (when/while) his mother was making salad.

Перевод задания: Exercise 1. Выберите правильный вариант ответа.

1. I was brushing my teeth while my sister was making tea. (Я чистил зубы, пока моя сестра заваривала чай.)
2. He was riding a horse when the car drove to the stable. (Он ехал верхом, когда машина подъехала к конюшне.)
3. Sue was walking along the path as it started to rain. (Сью шла по дорожке, когда начался дождь.)
4. You were washing the dishes while I was drying them. (Ты мыл посуду, пока я её вытирал.)
5. Kate was speaking to the doctor when her mobile telephone rang. (Кейт разговаривала с врачом, когда зазвонил её мобильный телефон.)
6. We were discussing the film while Mary was looking through some magazines. (Мы обсуждали фильм, пока Мэри просматривала журналы.)
7. The waiter was carrying the tray when he dropped a glass. (Официант нёс поднос, когда уронил стакан.)
8. Sam was crossing the road when he saw his friend at the bus stop. (Сэм переходил дорогу, когда увидел своего друга на автобусной остановке.)
9. Lin and Wendy were preparing for the test as the postman knocked at the door. (Лин и Венди готовились к контрольной, когда почтальон постучал в дверь.)
10. The child was eating soup while his mother was making salad. (Ребёнок ел суп, пока его мама готовила салат.)

Обоснование: while обычно связывает одновременные продолжительные действия, а when — продолжительное действие с кратким событием. В предложениях 3 и 9 as указывает на событие, происходившее в тот момент.