Ответ:

1 Do you know him? - He always tells a lie.

2 What is he doing here? - He is waiting for his friend.

3 When I came yesterday, I saw that my brother was doing his lessons.

4 Where is Nick? - He is playing tennis. He plays tennis well.

5 My wife is in her room now. She is sitting in the armchair and reading an interesting book. I want to read this book, too.

6 Where was she yesterday? - She visited her friend. They were playing chess the whole evening.

7 What were they doing the whole day last Sunday? - They were spending the whole day in the country.