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Ответ:

1. since, for, since, for, since

2. lived, worked, had, haven't seen, known

3. How long have they been in class?

How long has he known John?

How long has Mary worked in Miami?

How long have Pat and Ray been married?

How long has my mother had a motorbike?

How long have they studied Chinese?

4. Have you read that travel book yet?

I've already had my breakfast

I've just finished my homework

Has Jamie already eaten lunch?

They have just moved to the USA

5. We haven't started classes yet.

The class has already finished

He has already had his breakfast

Have you already seen the latest James Bond ?

I've seen it already!

6. moved, didn't know, has learnt, studied, helped, arrived, has eaten