We ___ (play) tennis when John ___(come). * played, was coming
was playing, was coming
were playing, came
When I ___ (enter) the office, the people ___ (not work). *
was entering, didn't work
were entering, weren't working
entered, weren't working
I ___ (walk) along the street while the children ___ (cross) the road. *
walked, crossed
was walking, were crossing
wasn't walking, crossed
Where ___ you ___ (live) at this time last year? *
was...lived
did...live
were...living
When the telephone ___ (ring), she ___ (take) a shower. *
rang, was taking
rang, took
was ringing, took

Today the word "electronics" is the general usage.
The center of this world is a tiny silicon plate of a few square millimeters, an integrated circuit, or a chip, as it is more commonly known. The integrated circuit is undoubtedly one of the most sophisticated inventions of man, science and technology. As the operation os an integrated circuit depends on microscopic "components", the purity of all materials and the cleanness at the plant they are produced at must be of the highest quality. 
In the past it took scientists and reserchers a whole lifetime to make a few thousand calculations, whereas for a modern computer this task is a matter of a few seconds. At present computers capable of performing billions of operations a second are required. In the next few years engineers will complete the work on computers of above 2 billion operations a second. It will take a few more years to produce a 10-billion operationscomputer. According to some researchers, we are close to what can be regarded as a true physical limit. But other specialists think that photons will make the operation a thousand times faster. This means that in the future it will be possible to expect the appearance of photon computers and that computations will be done by means of light. In a few decades a new age of light may replace the stil youthful electronic age. The race is going on.

I think that my school is the best one. I love it very much. Our teachers are kind and intelligent and my classmates are smart and friendly. But everybody has a dream. The dream about our new school - the school of the future. Now I would like to tell you a few words about my ideal school. First of all If I were a Headteacher of my school I would allowed everybody to have an opportunity to use one's phone. The second thing is our homework. So much of it! Don't the teachers know that it is waste of time, our time and theirs. The next. Our holidays. I would like to travel a lot. But when? Our holidays must be a bit longer I think. And at last the equipment of our classrooms! What do we see? There are few computers which we can use. My dream is every classroom has ten and more new computers with Internet. It's school of my dream.

 

Я думаю, что моя школа лучшая. Я ее очень люблю. Наши преподаватели добрые интеллигентные, и мои одноклассники умные и дружелюбные. Но у каждого есть мечта. Мечта о нашей новой школе - школе будущего. Теперь я хотела бы сказать вам несколько слов о моей идеальной школе. Прежде всего, если бы я была директором школы, я бы позволила бы всем иметь возможность использовать свой телефон. Второе, это наше домашнее задание. Так много! Разве учителя не знают, что это пустая трата времени, нашего времени и их. Далее. Наши каникулы. Я хотела бы много путешествовать. Но когда? Наши каникулы должны быть немного больше по времени, я думаю. И, наконец, оборудование наших классов! Что же мы видим? Есть несколько компьютеров, которые мы можем использовать. Моя мечта - в каждом классе десять и более новых компьютеров с интернетом. Это школа моей мечты.