The price system is a complex network composed of the prices of all the products bought and sold in the economy as well as of a great number of services.
—Did you have ________ great fun at the party? —Yes. It's ________ great pity that you missed it.
The two villages have a close ________ and often help each other.
The lorries were lined up, ready to move________.
Don't spoil the child. Can't you make your little son _______ himself?
Earth Day is a reminder that we need to care about the world we live in and that we should learn to ____________ life and nature.