ir-translation

1 a My friend and I live in different cities. We phone each other every day.
   b My friend and I live in different cities. We phone us every day.
2 a When I got home. I made myself a cup of coffee.
   b When I got home. I made me a cup of coffee.

We use me, you, him, her, it, us, them as the object of a verb:
My uncle came to visit me for three days.
Our teacher is great. We like him a lot.

We use myself, yourself, himself, herself, itself, ourselves, yourselves and themselves when the subject and object of a verb are the same:
I was angry with myself when I lost my watch.
Take care of yourself.
We went out and bought ourselves a drink.
They introduced themselves by saying where they came from.

We use each other when two (or more) people do the same thing to the other. We often use each other with (get to) know, like, meet, phone, see, tell, understand, write:
I hope we'll see each other soon, Sarah.
Everyone in the class knows each other very well.

2) Underline the correct form

1- Last lesson we all said something about us / ourselves and our families.
2- I share a flat with a student from Madrid. We know us / each other quite well.
3- When Susan lost her key, she hated her / herself.
4- I asked me / myself what I should do.
5- There are twelve of us / ourselves in the class.
6- My friends send them / each other text messages all the time.
7- You should get you / yourselves mountain bikes before we go on the trip.
8- My parents went to New York, but they didn't enjoy each other / themselves

I hope it is helpful for you.

Answer key 1:
1. a
2. a
Answer key 2:
2. each other
3. herself
4. herself
5. us
6. each other
7. yourselves
8. themselves