国产内燃机车每（）进行一次辅修。A、（5±1）万km B、（4±1）万km C、（3

Even as I write this story, I am still smiling. The past few weeks have been rather       , but when a large number of smile cards arrived in my mailbox the other day, having traveled from the United States to my home in the Netherlands, I knew things were about to         .
I          where to leave the cards: the train, benches at the station, libraries, mailboxes—the possibilities were         .
I woke up, went to work, and        , I went to the shop to buy some candy bars,         to leave them as anonymous (匿名的) gifts for people on the train.        , my train home was extremely         and I couldn’t find a place to leave the gifts. An elderly man must have        me searching for a place to leave them, because he asked me if I was          something.
Right then I          that my first smile card would not be anonymous. With a big smile, I told him that I found what I was looking for,         him the candy bar and a card. He had only just finished reading the card          I arrived at my          and got off the train, but he was still smiling and         his candy as I waved at him from the        .
Despite having worked for a full day, I         bounced (跳) home. Before I entered my         , I delivered a few more smile cards and candy bars to people’s mailboxes. I added a(n)          candy bar for a neighbor who was in a difficult financial situation, but worked hard every day to get the very best for his young son. I figured they both        a tasty little treat.

小题1:	A．joyous B．simple C．tough D．colourful

小题2:	A．turn away B．turn around C．turn up D．turn in

小题3:	A．required B．realized C．declared D．wondered

小题4:	A．small B．important C．specific D．endless

小题5:	A．otherwise B．afterwards C．instead D．sometimes

小题6:	A．stopping B．continuing C．agreeing D．planning

小题7:	A．However B．Besides C．Therefore D．Anyway

小题8:	A．special B．common C．crowded D．modern

小题9:	A．prevented B．seen C．heard D．left

小题10:

A．picking up B．caring about C．looking for D．referring to

小题11:

A．advised B．decided C．wished D．ordered

小题12:

A．buying B．posting C．sending D．handing

小题13:

A．when B．while C．until D．once

小题14:

A．hometown B．company C．country D．stop

小题15:

A．receiving B．enjoying C．finding D．dividing

小题16:

A．entrance B．office C．platform D．bench

小题17:

A．tiredly B．excitedly C．fortunately D．carefully

小题18:

A．apartment B．farm C．city D．classroom

小题19:

A．extra B．perfect C．typical D．ordinary

小题20:

A．rejected B．deserved C．afforded D．forgot