. –You see, I’m poor in maths, you are not good at English, and……--That’s_________we should help each other.
Can you make sure_______ the gold ring?
In order to increase the______ of the farm______, our government offers a lot of money to the peasants every year.
She was not______ frightened; in fact, she was nearly frightened to death.
At last they______ an agreement______ it.
_______to improve the students’sight, the eye exercises are done in schools nationwide.