单项选择题
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
A．driving short distances in hot weather B．having their car insured for ￡ 20 C．driving slowly at all times D．making sure their car is in good working order