填空题O

填空题preserved

单项选择题A．a university campus.B．a book store.C．a department store.D．a police station.

单项选择题A．several weeks.B．until your doctor tells you.C．12 months.D．at least 6 months.

单项选择题A．by credit card.B．with cash.C．with a cheque.D．he doesn’t want to buy them.