编码键盘的每个按键所对应的代码由键盘直接产生并送入计算机中，其响应速度快，但成本高且

Peter Wiggins grew up in a poor family. He worked diligently at his ____ job as teaching assistant in a private kindergarten and put in three more hours at night as a part­time cashier at a ___. By the time Peter walked home with slow and heavy steps every day，it was often close to ____.
Peter worked very hard in order to ____ his aged parents who had retired as restroom cleaners with ____ savings left after putting Peter and his sister through school. Peter was the only ___， for his sister, Beth, was often in poor health.
One day, as Peter was walking home from ACE Supermarket where he ____， he stumbled(绊脚) upon a small brown packet on the pavement. The package was slightly ____.
So he picked it up to examine it more closely. To his ____， it contained fifty­dollar bills. Peter knew it was not his to keep and that the ____ might urgently need the money.
Without ____， Peter walked quickly to the nearest police station and handed it over to Mr. Roberts who was the police officer ____ for that night. Surprised to see someone hand in such a large amount of cash ____，the police officer said that Peter was indeed a role model others could ____.
“It's nothing really...I was doing what ____ would have done，” Peter's face turned red as the officer continued to ask for his name and contact number so that the owner could ____ thank him. The next day, Peter received a ____. The owner of the lost money was none other than Peter's ____ at the ACE Supermarket! He had found out about Peter from Roberts and had decided to ____ Peter to the position of manager with a handsome increase in salary. He had also decided to pay for Beth's ___.Peter was overjoyed.

小题1:	A．any­time B．short­time C．day­time D．night­time

小题2:	A．supermarket B．night school C．restaurant D．hotel

小题3:	A．morning B．noon C．evening D．midnight

小题4:	A．settle B．impress C．support D．treat

小题5:	A．more B．some C．little D．much

小题6:	A．son B．breadwinner C．one D．assistant

小题7:	A．stayed B．shopped C．worked D．visited

小题8:	A．old B．torn C．familiar D．heavy

小题9:	A．joy B．disappointment C．shock D．relief

小题10:

A．leader B．assistant C．boss D．owner

小题11:

A．success B．fear C．hesitation D．doubt

小题12:

A．on behalf B．on duty C．on watch D．on purpose

小题13:

A．unfinished B．unused C．untouched D．unexpected

小题14:

A．look at B．look up to C．look down on D．look forward to

小题15:

A．few B．none C．anybody D．policemen

小题16:

A．independently B．personally C．cautiously D．regularly

小题17:

A．letter B．notice C．call D．packet

小题18:

A．colleague B．boss C．consumer D．enemy

小题19:

A．introduce B．expose C．promote D．lead

小题20:

A．university education B．travel costs C．holiday parties D．medical treatment