The number of the students in Woodland School__________1998.

One third of the country ________ covered with trees and the majority of the citizens________black people.( 2011·湖南)

A survey of the opinions of experts    that three hours of outdoor exercise a week    good for one’s health. 

You are not supposed to get off the bus ________ it stops.

I feel it is you rather than the girl who ______ for being late for the speech.