－Can you tell me how many colours _______ in a rainbow?－Seven.

Tom often goes to the beach on vacation, _____­­­­­____？

– David’s seldom late for school, ______ he? -- ______, even though the weather is very bad.

— The sick man’s allowed to take a walk in the garden every day, ________? — Yes, I think so.

—Tom, you never told me why you were late for school again,_____ you?        —____. But maybe you forgot it, sir.