17.16.A.Three days.B.Four days.C.Five days. 17.A.A.Yes,they did.B.No,they don't.C.No,they didn't. 18.A.A woman.B.A child.C.A man. 19.A.Yes,he did.B.No,he doesn't.C.No,he didn't. 20.A.Change his or her way of thinking. B.Think hard all the way. C.Give it up.
15.Why does the girl decide to watch TV? A.Because there are good programs on TV. B.Because she isn't interested in outdoor activities. C.Because the weather is bad outside.