.The UK is a (an) ________ small country, but the climate varies a lot in different places.
—It______________to plant trees and grass on the hillside. —Yes. They help stop soil from being washed away.
They’ve finally decided to put an end to the long and bitter________between them and make peace.
Stephen Hawking believes that the earth is unlikely to be the only planet_______life has developed gradually.
Between the two generations, it is often not their age, _________their education that causes misunderstanding.
—Ken has gone to the Africa country to work as a volunteer. — I would rather he _____there. The situation there is very tense.