Поставьте предложения в вопросительную и отрицательную формы. 1) There are many students at the lecture today 2) There is a blackboard in front of the students desk 3) there are several kinds of the left 4) There is a window on...

1.Are there many students at the lecture today?There aren't many students at the lecture today. 2.Is there a blackboad in front of the students desk?There isn't a blackboad in front of the students desk. 3.Are there several kinds of the left?There aren't several kinds ot the left. 4.Is there a window on the left?There isn't a window on the left. 5.Are there some tables on the wall?There aren't any tables on the wall.