Điền giới từ thích hợp vào chỗ trống

1 Điền giới từ thích hợp vào chỗ trống
Ex: The library opens at 7 am
1 The science book are......the left
2. There are a lot of books,newspapers, magazines,etc................the library
3. Magazines and newspapers are ........the racks...........the middle.
4. Are there any English books...........the shlves next.....the study area?
5. You find the physics books.........the back of the library
6. The United States' Library of Congress is .............Washington DC.
7 Those books are..................English
8. Washington DC is the capital..........the USA