CONVERSATION:

In a Computer Store...

C: Hello!

S: Hello. Can I help you? 

 C: Yes, I need a computer!  

S: Ok. How do you want your computer?

C: Mmm, The computer is for my sister.

She want one with a good System Operative, Comfortable and easy for work.

S: Ok. look this, please.

C: Oh! It is perfect for she...I want it!

...One hour later...

Eli: Hello Ana. Look this computer!

Ana: Oh, It is beautiful, where did you buy it?

Eli: I was walking near here and I bought it.

Ana: How much it costed?

Eli:  It was very economic and is for you

Ana: Thank you very much...