单项选择题
In order to avoid disaster it would be wise （）
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
单项选择题 25（）
单项选择题 22（）
单项选择题 Nevertheless, motorists themselves can try to prevent problems from arising by （）
