When it          choosing your future career, what kind of things will you take into consideration?

It is reported that in our country cities ________ heavy air pollution that is 30 percent above the national standard or higher should try to meet standards by 2030.

—How do you _____ your reading speed?—The speed is measured by how many words per minute you can read.

After a careful survey about the cause of the newly-built bridge, they finally came to a(n) _________ that it was due to the heavy rain.

________ of the land in that district(地区) _______ covered with trees and grass.