选用方框内的单词或词组填空，其中有一个单词或词组是多余的。

sweet    position    true    knock    passed away    size

46. I'm crazy about      food like cakes.

47. Chances didn't      until I built a door.

48. Tony has just got a      in a big company.

49. I don't know whether the story is      , but it tells me the importance of friendship.

50. The whole world felt very sad when Yuan Longping-Father of Hybrid Rice      on May 22 ,2021.