Поставьте предложения в вопросительной и отрицатель ной формах. 1. we were able to read that article in the library. 2. some students will be permitted to take exams in december. 3. you have to read this book. 4. we shall be able to skate in winter. 5. my friend is to take part in the conference. 6. the students of our group had to go to the plant last week. 7. they were allowed to continue their research.

1.Were we able to read the article in the library?
We weren't able to read the article in the library.
2.Will be some students permitted to take exams in December?
Some students won't permitted to take exams in December.
3.Have you have to read this book?
You haven't have to read this book.
4.Shall we able to skate in winter?
We shall not able to skate in winter.
5.Is my friend took part in the conference?
My friend isn't take part in the conference.
6.Are the students of our group had to go to the plant last week?
The students of our group hadn't go to the plant last week.
7.Were they allowed to continue their research?
They weren't allowed to continue their research.