- Is there a big library in your school? - Yes, the number of the books in our school library_______ very _______.

One-third of the country____ covered with trees and the majority of the citizens______ black people.

--------I often have hamburgers for my breakfast. --------You’d better not. It’s bad for you _________ too much junk food.

----What ________ the number of the students in your school?      ---- About two thousand. A number of them _______ from America.

Collecting stamps as a hobby___________ increasingly popular during the past fifty years.