They are on the racks.
They are on the racks, too.
The Math and Science books are on the left.
The History and Geography books, dictionaries and literature in Vietnamese on the right.
The books in English are at the back of the library.
It opens at 7.00 am.
It closes at 4.30 pm.
Nếu bây giờ bạn mới học tới bài này thì bạn học hơi chậm đấy 
They are on the racks.
They are on the racks, too.
The Math and Science books are on the left.
The History, Geography, Dictionaries and Literature books in Vietnammes on the right.
The books in English are at the back of the library.
It open at 7.00 am.
It close at 4.30 pm.
a)They are on the racks.
b) They are on the racks, too.
c) They are math and science books: Chemistry, Physics and Biology.
d) They are History and Geography books, dictionaries and literature in Vietnamese
e) The English books are at the back of the library
f) The library open at seven o'clock
g) It close at half past four
a) The magazines are on the racks.
b) The newspapers are on the racks.
c) On the left they are Math and Science.
d) On the right they are history and geography books, dictionaries and literature in Vietnam.
e) The books at the back of the library are in English.
f) The library is open at 7 a.m.
g) The libary is close at 4.30 p.m.