Driving through snowstorm on icy roads for long distances is a most nerve-racking experience. It is a paradox that the snow,coming __1__ gently,blowing gleefully in a high wind,all the while __2__ down a treacherous carpet,freezes the windows,__3__ the view. The might of automated man is__4__ . The horses,the powerful electrical systems,the deep-tread tires,all go __5__ nothing. One minute the road feels __6__,and the next the driver is sliding over it,light as a__7__,in a panic,wondering what the heavy trailer trucks coming up__8__the rear are going to do. The trucks are like __9__ when you have to pass them,not at sixty or seventy __10__ you do when the road is dry,but at twenty-five and thirty. __11__ their engines sound unnaturally loud. Snow,slush and__12__ of ice spray from beneath the wheels,obscure the windshield,and rattle __13__your car. Beneath the wheels there is plenty of __14__ for you to slide and get mashed to a pulp. Inch __15__ inch you move up,past the rear wheels,the center wheels,the cab,the front wheels,all__16__too slowly by. Straight ahead you continue,__17__ to cut over sharply would send you into a slip,__18__in front of the vehicle. At last,there is__19__enough,and you creep back over,in front of the truck now,but__20__the sound of its engine still thundering in your ears.