ГДЗ зошит граматика Англійська мова 8 клас Хейдерман Prepare

4. Correct the mistakes in each sentence.

1. Yesterday I saw a suspicious man when I was walking my dog. 2. The witness was talking to the detective when they heard the sirens. 3. A shopkeeper was talking to a customer while the thief was stealing the money. 4. They were patrolling the area when they caught the burglar. 5. The alarm went off while the security guard was sleeping. 6. While I was watching a film, I heard a loud crash outside. 7. The police were investigating the case and discovered new evidence. 8. Last week I read about the vandalism which happened in the city centre.