Нужно очень можно без перевода

1  How long have you and Bill known each.other?
2  If people work too hard, they can make themselves ill.
3   I need you and you need me. We need each other.
4  In Britain friends often give each other presents at Christmas.
5   Some people are very selfish. They only think of temselves.
6  Nora and I don't see each other very often these days.
7  We couldn't get back into the house. We had locked ourselves out.
8   They've had an argument. They're not speaking to each other at the moment.
9  We'd never met before, so we introduced ourselves to each other.

Объяснение:

2) If this book wan`t so expensive, Iwould buy it.

3) If we could afford going out often, we would do this.

4) If I didn`t have to work, I would meet you tomorrow.

5) If It wasn`t  raining, We would have lunch outside.

6) If I wanted his advice, I would ask for it.

7) If he didn`t live near his work, He would always be late.

8) If his French was bad, He wouldn`t read French books in the original.

9) If they didn`thave a maid, they wouldn`t enjoy themselves.

10) If she didn`t go to bed early, She wouldn`t always wake up in time.