Complete the sentences:1. Mark and Liz are married. They ... have been married for 5 years.2. David has wathced TV ...

1. Mark and Liz are married. They have been married for 5 years.

2. David has watched TV since 5 o\'clock.

3. I have been there for 5 days.

4. Tom has had the same job for 20 years.

5. How long have you been there?

6. I have known Ann since we were at school.

7. I have never seen a horse.