Ответ:

Перевод задания: Перепишите две фразы одним предложением, используя when или while.

В Past Continuous указывается длительное действие, на фоне которого произошло короткое действие в Past Simple.

  1. She was walking home. Someone stole her bag. (while)
    She was walking home while someone stole her bag.
    Она шла домой, пока кто-то крал её сумку.
  2. It began to rain. They were having a picnic. (when)
    They were having a picnic when it began to rain.
    Они устраивали пикник, когда начался дождь.
  3. I was cleaning my room. I found five pounds. (when)
    I was cleaning my room when I found five pounds.
    Я убирал(а) свою комнату, когда нашёл/нашла пять фунтов.
  4. The detectives were looking in the car. They found an important clue. (while)
    The detectives found an important clue while they were looking in the car.
    Детективы нашли важную улику, пока осматривали машину.
  5. John arrived. We were having dinner. (while)
    John arrived while we were having dinner.
    Джон пришёл, пока мы ужинали.