阅读下面短文，掌握其大意，从每题所给的A、B、C、D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。Every fast-food employee knows that the

阅读下面短文，掌握其大意，从每题所给的A、B、C、D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。
Every fast-food employee knows that the drive-through window is the worst position. The window sticks with constant ice; the roar of engines hurts your     ; your words are lost in the howling wind.
On a      afternoon, everything changed.
Every once in a while, the sub-zero temperatures seal a      windows shut. Drivers don’t exactly enjoy having to stand outside in the cold,      their orders into a speaker box, when they expect to drive through on their heated leather seats. In such cases, most customers tend to show their annoyance to the employees.
This woman was     .
“I’ll get the next car’s      as well,” she said as she came up to the window to pay. She stood outside,      much snow on her hair. Though she was obviously freezing, her bright      lit up her face like a fire.
“You can’t      their drinks,” I said, confused and tired.
“No, but I’ll buy them,” she said. “Pay it forward and all that.”
Completely puzzled, I charged her as     , and when the next customer arrived at the window I explained what had just happened. I watched as his      changed — first angry to be out in the cold, then      at the random act of kindness, and finally, delighted by his    .
“I suppose I’ll pay for the next order then,” he replied, nodding and waving at the impatient driver      him. He      over the cash and received his pre-paid hot drink.
The trend continued. Customers arrived annoyed, only to leave      and pleased. Some were shocked to spend much more than they had expected,      others ended up receiving their order for less than half the price.
Five vehicles passed, then ten, then twenty. No one refused to pay. Customers stood at my window      a fist-full of change to buy drinks for a plete stranger. Cars drove off, honking (鸣笛) and      their thanks.
It only takes one customer, one person, to change the entire      of traffic. It only takes one moment, one smile, to warm up even the coldest of days.
【小题1】A．earsB．handsC．feetD．back【小题2】A．freezingB．sunnyC．warmD．usual【小题3】A．truck’sB．vehicle’sC．car’sD．lorry’s【小题4】A．offeringB．throwingC．screamingD．cancelling【小题5】A．politeB．angryC．popularD．different【小题6】A．numberB．coffeeC．feeD．order【小题7】A．coveringB．increasingC．gatheringD．falling【小题8】A．eyesB．smileC．hairD．annoyance【小题9】A．payB．takeC．buyD．bring【小题10】A．instructedB．requestedC．directedD．suggested【小题11】A．gestureB．expressionC．figureD．feeling【小题12】A．inspiredB．upsetC．surprisedD．disappointed【小题13】A．turnB．senseC．deedD．luck【小题14】A．beyondB．beforeC．besideD．behind【小题15】A．tookB．lookedC．handedD．thought【小题16】A．shyB．calmC．anxiousD．regretful【小题17】A．whileB．sinceC．asD．unless【小题18】A．makingB．emptyingC．lyingD．holding【小题19】A．explainingB．sendingC．introducingD．casting【小题20】A．jamB．rowC．flowD．lineA