Поомгите с Электротехникой, если можно напишите развёрнутый ответ

1 A: How long is she known him?
B: They have ben friends for a long time.

2 A: Have you found your keys yet?
B: No, I have been looking for them all morning.

3 A: Do you like the musician David Matthews?
B: Yes. I just bought his new CD.

4 A: Why is James angry?
B: He has lost the keys for his house.

5 A: Where have you been?
B: I have been working out in the gym all afternoon.

6 A: Where is Sarah?
B: She has gone to the shops with her mother and sister.

7 A: I have been going to the Greek Islands for years now.
B: You must like going there very much.