12. Преобразуйте следующие предложения в вопросительные и отрицательные: 1. There are two...

12. Преобразуйте следующие предложения в вопросительные и отрицательные:
1. There are two reference books on the shelf. 2. There is a lot of discussion about language learning now. 3. There is a set of grammar exercises in this text book. 4. There are some cours¬es for beginners at the University. 5. There are some booklets here. 6. There is some sense in what he proposes.

1. Вопросительное:
Are there two reference books on the shelf?
Отрицательное:
There aren't two reference books in the shelf.
2. Вопросительное:
Is there a lot of discussion about language learning now?
Отрицательное:
There isn't a lot of discussion about language learning now.
3. Вопросительное:
Is there a set of grammar exercises in this textbook?
Отрицательное:
There isn't a set of grammar exercises in this textbook.
4. Вопросительное:
Are there any courses for beginners at the University?
Отрицательное:
There aren't any courses for beginners at the University.
Употребили any, так как это вопросительное и отрицательное предложения, там some поставить нельзя
5. Вопросительное:
Are there any booklets here?
Отрицательное:
There aren't any booklets here.
По той же причине any.
6. Вопросительное:
Is there any sense in what he proposes?
Отрицательное:
There isn't any sense in what he proposes.