Поставьте следующие предложения в отрицательную и вопросительную формы.1.There is a large

Поставьте последующие предложения в отрицательную и вопросительную формы.
1.There is a large table in my room.
2.There are three windows in my classroom.
3.There is a table and four chairs in my sister's room.
4.There is a blackboard, four tables and five chairs in our classroom.
5.There is a text-book and two exercise-books on my table.
6.There are very many children in the park yesterday.