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sh swim around is very interesting. A. Watches B. Watch C. To watch D. Looking ( ) _____is a good idea ______the water every week. A. This, change B. It, change C. It, to change D. That, to change 二、完形填空。 One day, some children were playing hideandseek(捉迷藏 )happily. In front of the 1 , Jim found the door of the letter box was 2 and climbed in. He 3 closed the door. When he knew 4 he had locked himself in it, he began to 5 help, but nobody could 6 . He was 7 and began to c