I am a mom of two young children whom we home-school. This that they are with me almost co

I am a mom of two young children whom we home-school. This      that they are with me almost constantly. Whenever possible I will      random acts of kindness;      things like paying for the order behind me in the drive-thru lane, holding doors, etc. So, they are very      with the concept and are, of course,      to also do nice things for others.
Just a few days ago we stopped      our local grocery store to pick up a few things which quickly turned into an entire cart load of stuff. We got into one of the two open checkout lanes and waited our     . While waiting a young man came up behind us with only a few      in his basket. I told him to go ahead of us as we were in no      . 
He seemed very pleasantly surprised and graciously     . As he began putting his items on the belt the clerk began to      her till tape so we had a fairly long wait in line. My kids were very      behaved but they were still children; they asked questions, they talked     , they moved around and they were generally very entertaining. (To me, anyway.) 
I could see the young man watching and listening with a smile on his face.  
We were putting our groceries on the      when the clerk finished with      order. What I didn't know was that he had heard my kids      bubble gum. I had agreed they could have some.     , he picked up a pack of bubble-gum and asked the clerk to ring it through twice before putting it back. He then told my kids that he bought their gum      their mom was      enough to let him go ahead in the queue.
The experience really drove home the      that good begets(产生，引起) good for my lovely little kiddos（亲呢的称呼：小伙子）.
【小题1】A．tellsB．leavesC．means D．ensures【小题2】A．entertainB．serveC．functionD．perform【小题3】A．importantB．impressiveC．suitableD．simple【小题4】A．satisfiedB．occupiedC．familiarD．pleased【小题5】A．supportedB．taughtC．encouragedD．supposed【小题6】A．nearB．by C．withD．against【小题7】A．opportunityB．returnC．turnD．time【小题8】A．fruitB．vegetablesC．itemsD．sales【小题9】A．timeB．hurryC．caseD．sense【小题10】A．acceptedB．collectedC．carriedD．agreed【小题11】A．changeB．removeC．continueD．stop【小题12】A．badlyB．poorlyC．wellD．ill【小题13】A．constantlyB．immediatelyC．usuallyD．rudely【小题14】A．beltB．benchC．basketD．cart【小题15】A．herB．hisC．their D．our【小题16】A．plain aboutB．allow forC．ask forD．concern about【小题17】A．SoB．ButC．OrD．For【小题18】A．when B．unlessC．becauseD．until【小题19】A．happyB．helpfulC．seriousD．nice【小题20】A．ideaB．rewardC．chance D．instructionC