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Задание:
I know to use already and yet with the present perfect.
Complete the dialogues with already or yet.

1. A: Let's watch this film.
B: No, I've _____ seen it.

2. A: Why haven't you done your homework _____?
B: I've just come home from school.

3. A: Is this a new coat?
B: Yes, i haven't worn it _____.

4. A: Where's Jack?
B: He's ____ gone to bed. He was very tired.