напишите ответы 1 What do scientists test with supercomputers?
Child
tre
2 How many operations can a supercomputer do per har
second?
nha
3 What makes a supercomputer powerful?
hre
4 Why are virtual physical worlds useful to scientists? big
5 How can supercomputers help aeroplane pilots?
6 What will the 'ultimate supercomputer' do?

1. This newspaper is read (pres simp pass) by our students.
2. They are making (pres cont act) an interesting experiment now.
3. I will bring (fut simp act) you the book tomorrow
1. I knew (past simp act) that he had seen (past perf act) this film.
2. He said (past simp  act) that he lives (pres simp act) in this district.
3. He will read (fut simp act) your article when he has (pres simp act) the time.
1. Эту газету читают наши студенты.
2. Сейчас они проводят интересный эксперимент.
3. Я принесу вам книгу завтра.
1. Я знал, что он видел этот фильм.
2. Он сказал, что живет в этом районе.
3. Он прочитает вашу статью, когда у него будет время.

All countries have conventional but important behaviour rules that could be explained by inhabitants only. So, you've come to Russia but you haven't know about these rules yet. I'll help you learn primary of them. 
Firstly,russuians usually cede pleces to aged people in the bus. We take care about our elderly. This rule should be known to you,for sure. 
Secondly,russians usualy take off their footwear before entering the house. Perhaps,it could seems rather strange. But this is russian behaviour rule.
Thirdly, we usualy say "enjoy your meals" to each other before dinner,supper. It's not typical for your country,isn't it? Also,when russians have a meet they can kiss each other. We don't open gifts out of hand,which was presented to us. There are many another rules. But, we have to remember foreigners don't aware about all our rules and as long as you staying friendly and polite don't worry about your a little bit strange behaviour.  
Вот исправленный вариант.