Mary is one of the girls who _____ often late for school.

____of the land in that district ____covered with trees and grass.

The number of the people invited to the meeting ____ about 100, but a number of them ____ late because of the heavy snow.

Only 16 percent of China’s area ____ covered with forests, so ____of us should protect trees. 

  the pencils ? They’re in the pencil box.