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.