Ответ:

2)Have they study at this school for a long time?

3)Has he had his computer long?

4)Have we been in the sports team for a long time?

5)Has she been your teacher long?

6)Have I known you for a long time?

Ex3

2)How long have they live in an amazing castle?

3)How long we had a pet snake?

Объяснение:

2,4,5 не знаю