单项选择题
A．a discount for becoming members B．a box which fits nearly into most car C．a selection of parts which may be needed D．a chance to rent a car cheaply
A．use a plastic windscreen B．give their traveling companions all their documents C．carry extra money for emergencies D．keep a spare set of keys
A．to spend five minutes checking the car before you leave B．to carry some emergency spares with you C．to buy a cheap set of spares before leaving D．to prevent all breakdowns from happening