“This Friday we'll have the yearly Egg Drop Challenge,” said our science teacher, Mr. Bake

“This Friday we'll have the yearly Egg Drop Challenge,” said our science teacher, Mr. Baker. “You can work alone or with a partner.”
My friend, Cassie, and I smiled at each other. We always worked on projects   36 .
The   37  of the challenge was simple—to build a protective container to keep an egg from breaking when   38  the stadium wall.
I made my sandwich that afternoon while waiting for Cassie.   39   the butter-cream gave me an idea.
“I have a brilliant design for our   40  container!” I said when Cassie arrived. “We can 41 the egg with some butter-cream.”
“Why not put the egg in a basket with a parachute   42 ?” Cassie rolled her eyes. “The parachute is better than that stupid idea.”
I couldn't believe it. Of course we'd had our little   43  in the past, but she'd never called any of my ideas “  44  ” before.
“Then I’ll build mine and you build yours!”
  45  words had been out, our friendship was challenged.
When Friday finally arrived, I had to   46   Cassie’s Egg Force One looked pretty good. 47, my Egg-cellent Egg Cream didn't look quite scientific. We kids carried our containers up three stadium steps and dropped them over the side wall. Those whose eggs broke were out; those whose eggs survived   48  three more steps and dropped them again. This would go on till the last egg broke.
After four rounds, only Cassie and I were   49 . I let go of my box. I heard someone say “ew” after seconds. Had my egg broken? I raced down the   50 . The sidewalk was dotted with egg shells(蛋壳) from those   51  drops. Finally I found my little Egg-cellent Egg Cream.
“That looks like egg drop soup, Laura,” Cassie said. She was holding her Egg Force One. My 52  raced. Had she won? I looked at her basket.   53 .
“My egg bounced (弹起)   54 ,” she explained, pointing to a broken shell.
“A tie（平局）,” Mr. Baker said.
Cassie looked at me, and her glare（瞪眼） 55 . I laughed. She smiled…
【小题1】A．patientlyB．silently C．togetherD．alone【小题2】A．functionB．goalC．reasonD．result【小题3】A．rolled downB．pushed againstC．thrown atD．dropped over【小题4】A．SpreadingB．BoilingC．BakingD．Holding【小题5】A．butterB．sandwichC．creamD．egg【小题6】A．protectB．replaceC．carryD．mix【小题7】A．followedB．coveredC．attachedD．supported【小题8】A．ideasB．fightsC．worriesD．challenges【小题9】A．wrongB．stupidC．brilliantD．scientific【小题10】A．SinceB．WhileC．ButD．And【小题11】A．explainB．denyC．admitD．prove【小题12】A．ThereforeB．AnywayC．OtherwiseD．Besides【小题13】A．paced downB．turned aroundC．walked upD．went back【小题14】A．leftB．wantedC．chosenD．discovered【小题15】A．stepsB．wayC．wallD．sidewalk【小题16】A．intendedB．unexpectedC．failedD．desired【小题17】A．eyesB．handsC．feelD．heart【小题18】A．LostB．DirtyC．BrokenD．Empty【小题19】A．aroundB．outC．inD．down【小题20】A．returnedB．remainedC．increasedD．softenedC