The three main islands __________ this country.
More and more people choose to shop in a supermarket as it offers a great ____ of goods.
So difficult ______ it to live in an English-speaking country that I determined to learn English.
For a moment nothing happened. Then ______all shouting together.
—How long are you staying? —I don’t know. ______.
Whatever work you are doing, you should concentrate your attention ______it.