б) Обращая внимание на употребление предлогов: 1. Is your book on the table or under it? 2. Is your map in your brief-case or on the table? 3. Is the teacher at the table or at the blackboard? 4. Is Peter at the door or at the table? 5. Are we at the table or at the door? 6. Is his map on his book or under his book? 7. Is his book in my bag or on his table?

Перевод задания: Обратите внимание на употребление предлогов.

1. My book is on the table. (Моя книга на столе.)
2. My map is in my briefcase. (Моя карта в портфеле.)
3. The teacher is at the blackboard. (Учитель у доски.)
4. Peter is at the door. (Пётр у двери.)
5. We are at the table. (Мы за столом.)
6. His map is under his book. (Его карта под его книгой.)
7. His book is on his table. (Его книга на его столе.)

Предлоги on, under, in обозначают положение предмета, а at употребляется с местом нахождения человека у объекта или в определённой точке.