4.Complete the question tags.

Решение:

1. Rose is cleaning out the pond, isn't she?
2. Andy has been reading a book for 15 minutes, hasn't he?
3. Sally is collecting rubbish, isn't she?
4. They study at a secondary school, don't they?
5. You can speak three languages, can't you?
6. He has passed the exam, hasn't he?

Ответ: 1. isn't she, 2. hasn't he, 3. isn't she, 4. don't they, 5. can't you, 6. hasn't he.