单项选择题
A．Their father is unable to keep his promise. B．Their rather is going on a vacation without her. C．Their father isn’t telling her the truth. D．Their father doesn’t want to travel abroad.
A．Buy some traveler’s checks. B．Borrow some money from a friend. C．Check the brakes and tires. D．Spend some time traveling.
A．Useless. B．Unnecessary. C．Important. D．Wasteful.