4. Complete the sentences with the appropriate tense forms of verbs.

Решение:

1. Andy and I have known each other since we met in a summer camp four years ago.
2. The children have watched television for two hours. I think it's more than enough.
3. How long have you been learning to play the piano? When did you begin ?
4. Peter phoned just now. He says he bought food at 5 o'clock yesterday.
5. I see that your hair is wet. Have you been swimming?
6. Would you like a piece of cake? I will make it. I will make such a cake for you if you say that you like it.