I’ve often puzzled over something that happened to me one winter when I was eight. Over th

I’ve often puzzled over something that happened to me one winter when I was eight. Over the years I had been wondering if my  31 was nothing more than a kid’s imagination.
There was a  32  near our house. In winter it was the greatest  33 place in the world. One  34 all I wanted to do was go skating. I had been waiting for weeks  35  the water was frozen solid. Mom had one rule: “Never ice-skate alone.” But I couldn’t  36 any longer that afternoon. So I  37 my skates under my coat and ran to the pond. Several people were skating near the shore, and some kids were playing hockey．I was not really  38 ．
The hockey game had attracted   39 audience, so I skated in the other direction until their cheering  40  . But another noise came soon. The ice was cracking beneath me. Freezing water  41  my body, and I sank like a rock.  My feet  42   the bottom. Just when I thought I wouldn’t last another 43 , I felt a tap on my shoulder. “Don’t worry,” someone said. I swung my 44 around. I couldn’t see anybody. But I heard the voice again，“Push your feet into the bottom and you’ll shoot straight up to the surface.” I did as I was told and  45 . I crawled to the shore and lay down,  46 ．The next thing I knew was people were   47   around me, covering me with coats.   
When I awoke, I was home in my own bed. Mom sat next to me,   48  my hand. “I saw nobody there. It must be an angel that came to my  49 ．” I said. Mom smiled, “I just thank God you’re safe.”
For a long time I thought I would  50 a more realistic explanation if I just thought hard, but I never did.
【小题1】A．attentionB．behaviorC．explanationD．reason【小题2】A．riverB．pondC．lakeD．dam【小题3】A．skatingB．fishing C．swimmingD．skiing【小题4】A．afternoon B．morning C．eveningD．night【小题5】A．afterB．untilC．asD．if【小题6】A．goB．runC．sitD．wait【小题7】A．foundB．threwC．tookD．hid【小题8】A．lonelyB．single C．aloneD．afraid【小题9】A．noisyB．happyC．smallD．young【小题10】A．changedB．disappearedC．increasedD．stopped【小题11】A．filledB．controlledC．coveredD．loaded【小题12】A．hitB．dragged C．setD．tapped【小题13】A．dayB．hourC．minuteD．second【小题14】A．headB．handC．armD．leg【小题15】A．leftB．succeededC．triedD．survived【小题16】A．worriedB．surprisedC．excitedD．exhausted【小题17】A．lyingB．standingC．laughingD．crawling【小题18】A．raisingB．shakingC．holdingD．washing【小题19】A．placeB．mindC．defenseD．rescue【小题20】A．take up B．make up with C．bring up D．e up withC