完形填空。 A girl named Helen in my class had a terrible accident.As she was running to the bus in order not to miss it, she slipped on some ice and fell__ 1 __the rear wheels of the bus.She__ 2 __the accident, but was paralyzed from the waist__ 3 __.I went to see her, in my 13yearold mind thinking she wouldn't live__ 4 __from then on. Over the years, I moved and didn't think__ 5 __about Helen after that.Three years ago, in Florida, my oldest son was__ 6 __by a car while riding his bike,__ 7 __a terrible brain injury.__ 8 __I was looking after him, a lady who said she was the hospital's social worker called.It was a particularly__ 9 __ day.I burst into tears for no__1 0 __and hung up. A short time later, a beautiful woman, in a__ 11 __, rolled into my son's room with a box of tissues. After 16 years, I still recognized Helen.I told her__ 12 __I was, and after we both__ 13 __the shock of that, she began to tell me about her life.She had married, had children and gotten her degree so that she could__ 14 __ the path for those less  __ 15 __than her.She told me that if there was anything she could give me, it would be__ 16 __. Looking at this wonderful, giving person, I felt__ 17 __.But I also felt the first hope I had felt since then.From this person that I thought would have no__ 18 __of life; I learned that where there is life, there is hope.My son miraculously__ 19 __and we moved back north, but I owe Helen a__ 20 __that I can never repay. (     )1.A.into (     )2.A.escaped (     )3.A.down (     )4.A.normally (     )5.A.many (     )6.A.collapsed (     )7.A.making (     )8.A.Before (     )9.A.forgettable (     )10.A.reason (     )11.A.coat (     )12.A.how (     )13.A.got across (     )14.A.build (     )15.A.fortunate (     )16.A.hope (     )17.A.confident (     )18.A.quantity (     )19.A.worsened (     )20.A.life B．over B．resisted B．up B．comfortably B．much B．driven B．causing B．While B．tiring B．excuse B．suit B．where B．got off B．smooth B．money B．dream B．selfish B．way B．recovered B．bill C．under C．sacrificed C．in C．seriously C．less C．drawn C．resulting C．After C．trying C．matter C．wheelchair C．what C．got out C．take C．powerful C．fancy C．small C．quality C．disappeared C．success D．onto D．survived D．out D．optimistically D．little D．hit D．leading D．Since D．unconscious D．account D．hurry D．who D．got through D．follow D．wealthy D．ideal D．depressed D．standard D．overcame D．debt