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.

　　1. [A] up [B] off [C] down [D] on

　　2. [A] lies [B] lays [C] settles [D] sends

　　3. [A] blocks [B] strikes [C] puffs [D] cancels

　　4. [A] muted [B] discovered [C] doubled [D] undervalued

　　5. [A] for [B] with [C] into [D] from

　　6. [A] comfortable [B] weak [C] risky [D] firm

　　7. [A] loaf [B] feather [C] leaf [D] fog

　　8. [A] beneath [B] from [C] under [D] beyond

　　9. [A] dwarfs [B] giants [C] patients [D] princesses

　　10. [A] what [B] since [C] as [D] that

　　11. [A] So [B] But [C] Or [D] Then

　　12. [A] flakes [B] flocks [C] chips [D] cakes

　　13. [A] onto [B] against [C] off [D] along

　　14. [A] snow [B] earth [C] room [D] ice

　　15. [A] by [B] after [C] for [D] with

　　16. [A] climbing [B] crawling [C] winding [D] sliding

　　17. [A] meanwhile [B] unless [C] whereas [D] for

　　18. [A] sheer [B] mostly [C] rarely [D] right

　　19. [A] might [B] distance [C] air [D] power

　　20. [A] with [B] like [C] inside [D] upon