Ответ: 1. These articles are translated by students every year.2.This article is being translated by two students now.3. This article has been just translated. 4.This article was translated by students a week ago.5. This article was being translated by students at 3 o`clock yesterday.6. This article had been  translated by Mikle by3 o`clock.  7. This article will be translated by students tomorow.8 . This article will have been translated by students by 12 o`clock