通读下面短文，掌握其大意，然后在各题所给的四个选项（A、B、C 和 D）中选出一个最佳选项。
My crafty(鬼点子多的) child was driving me crazy the other day. That afternoon, I was busy getting the house ready for guests to arrive. When I walked across the entrance( 入 口 ). I found a piece of folded paper1 on the recently-swept floor.
"Paul must try to carry waste paper from the living room to the rubbish can and 2 a few pieces, " I sighed(叹气), picking them up.
Moments later, I passed through the entrance again and found 3 paper. No quiet sighing this time, I4 , "Who is throwing rubbish around the entrance?"
No answer. 5 , I saw more bits of paper silently flying down from upstairs. Looking up, I saw my seven-year-old son6 over the stairs.
"Paul!" I cried tiredly. "Stop making a/an 7 . " Paul looked at the paper bits falling quietly to the floor. "It's not. They're butterflies. " He ran down the stairs to 8 his papers. "Where are my other butterflies?" he asked, looking around.
Every time Paul puts five or more words together, I can't help saying 9 from the bottom of my heart. For the first three years of his life, there were no words; the next three years, he still could10 put two words together. But lately he seems to realize that the advantage( 好 处 ) of forming11 sentences is worth his effort when communicating.
Butterflies. Of course. I rushed into the kitchen to 12 them from the rubbish and hand them to Paul.
"Want to see them fly again?" he asked. "Oh, yes! They are beautiful, Paul. " I agreed.
He ran back upstairs to fly his paper down again. I watched them fly softly down 13 me.
They really did look like beautiful butterflies.
That day Paul made me look up at14 instead of looking down at rubbish. Life is not what happens to us but it is 15 we look at it.
