Do you have enough        to prove that you are right?

The sooner we students ________to the new school，the better it will be ________our  studies.

 —Shall we go out for a walk? —Sorry. This is not the right _________ to invite me. I am too tired to walk.

How would you feel being locked in the house all day with no one and nothing for _____?

——They say that my new car is a ____________ of money. ——Don’t you think those words are just sour grapes?