— I want someone to write the composition for me.— No. As a student, you ________ depend on yourself.
Americans eat____ vegetables per person today as they did in 1990.
Students ______ remain in their seats until all the exam papers have been collected.
The atmosphere of the earth ______ us from the strong sun light.
---How well did John do in the match? --Wonderful. I think we can’t have a ______ player in our football team.
Many countries are increasing their use of natural gas , wind and other forms of ______.