1 Look at the sentences. Choose the correct alternative. 1 My mum doesn't work/didn't work in an office when she was young. 2 My dad didn't go/not go to work yesterday. 3 My grandfather didn't studied/didn't study when he was 17. 4 In 1990, people didn't have/ haven't mobile phones. 5 She didn't like/doesn't like her old job, but she likes her new one. 6 Today, people didn't/don't usually work seven days a week. 7 I didn't had/didn't have piano lesson when I was a kid. 8 Susan did study/studied with her sister yesterday. 9 We had/have PE last Monday. 10 Jack goes/went to the cinema last night.

Решение:

• 1. My mum didn't work in an office when she was young. (Past Simple используется для описания действий, завершившихся в прошлом.)
• 2. My dad didn't go to work yesterday. (Отрицание в Past Simple образуется с помощью 'didn't' + инфинитив без 'to'.)
• 3. My grandfather didn't study when he was 17. (Аналогично, 'didn't' + инфинитив.)
• 4. In 1990, people didn't have mobile phones. (Past Simple для действия, которое не происходило в прошлом.)
• 5. She didn't like her old job, but she likes her new one. (Past Simple для описания отношения в прошлом.)
• 6. Today, people don't usually work seven days a week. (Это утверждение о настоящем, поэтому используется Present Simple.)
• 7. I didn't have piano lesson when I was a kid. (Past Simple для действия, которое не происходило в прошлом.)
• 8. Susan studied with her sister yesterday. (Past Simple для завершенного действия в прошлом.)
• 9. We had PE last Monday. (Past Simple для завершенного действия в прошлом.)
• 10. Jack went to the cinema last night. (Past Simple для завершенного действия в прошлом.)

Ответ: 1. didn't work, 2. didn't go, 3. didn't study, 4. didn't have, 5. didn't like, 6. don't, 7. didn't have, 8. studied, 9. had, 10. went