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 the left
5) There are some tables on the wall

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.