Поставьте следующие предложения в прошедшем и будущем времени…

1. Our students were given a lot homework to do every day. Our students will be given a lot homework to do every day… 2. What kind of books were discussed in class? What kind of books will be discussed in class? 3.Comrade Ivanov was often asked to translate articles from English into Russian. Comrade Ivanov will be asked to translate articles from English into Russian. 4. How many houses were built in our city a year? How many houses will be built in our city a year? 5. Why weren't these exercises done? When will these exercises be done? Не уверенна.