He studies so hard to avoid （ ） at the bottom of the class.

Our teachers always tell us to believe in （ ） we do and who we are if we want to succeed.

One’s life has value （ ） one brings value to the life of others.

Many teenagers feel no difficulty （ ） computer.

Have you checked all the CDs （ ） to the mountainous area next week?

_____， we went swimming in the river.

Do what you think is right, （ ）they say.

His fellow workers saw him fall down and blood came out from the open（ ） .

Our teachers always tell us to believe in （ ） we do and who we are if we want to succeed.

The demand made by the workers is that their salaries （ ） to cover the increased cost of living.

The chemical factory was torn down （ ） protecting the environment.

（ ） singer and （ ） dancer is also good at drawing.