Use verb in the correct form
- Scientists (to develop) rocket technology already.
- Today it (to be) popular to have a PC at home.
- Students (to use) the Internet now.
- Students (to make) difficult experiments the whole day yesterday.
- Our teacher (to write) a new program today.
- We (to do) difficult experiment next week.
- E-mail (to be) the most popular service in the Internet.
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Bratsk is a small town in the Irkutsk Oblastiach the city is beautiful,but very small and not so well investindo live in their apartments,and some have their own houses(cottages) in town.The Bratsk good movement,and no large provoked travel either in their cars or on public transport as the bus,avtobus free time,people visit the cinema or the theatre,or spend time with your friends or Rodnina or go to sports sanatized fairly small town,so there are almost all each other snouty my opinion, the people here are very drujelubnie usually eat at home,prepare eduu us in the city there are small restaurants,but not everyone goes down there,it is better to sit at home and eat with their families!

Dear Sergio,  
I was very glad to hear from you. I haven't written for ages because of my sport activities. I took part in a serious completion so I had not much free time.
Tell me, please, are you really in New York now? I want to know how you have got there. Are you travelling alone or with your parents or friends?
We are very worried about you because you are a really troublemaker. You must write us a postcard every day to tell us about your everyday events. Well, what is the best thing about New York for you? Are there many beautiful buildings or maybe you made friends with interesting people there? Have you got any plans for the evening? Where are you going to go and what to do? Oh, we wish we were there with you. It would be great!
That's for me for today. I have to go to a school club.   
Best regards to your new friends. 
Write soon.   
Yours Happy (твое имя)