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Water is the ______ (1) of all the things we eat and drink. Not many people understand this but _____ (2) true. The human body can go without ____(3) for a long time. Weve got many examples for this. Yet two _____ (4) three days without water can usually make people ______ (5) . Man cant live _______ (6) water. A lot of people dont understand how _____ (7) water the human body needs to work well, and many people , especially young people , do not drink enough, _______ (8) in very hot weather. Our body has mostly water, about 65% to 75% . That is to say about two thirds of our body ______ (9) water. When we do sports , some of the water will get away from our body. ______ (10) we dont drink some water, we wont have enough water. And if we dont have enough water, well feel tired and many of us will get ill. So you know how important water is to us. ( )1.A. important B. most important C. more important D. importance ( )2.A. its B. its C. it D. is ( )3.A. food B. water C. drink D. meat ( )4.A. so B. and C. but D. or ( )5.A. to die B. die C. dying D. died ( )6.A. have B. with C. without D. in ( )7.A. many B. much C. little D. few ( )8.A. even B. ever C. almost D. hardly ( )9.A. is B. are C. have D. has ( )10.A. If B. For C. Since D. Because | 
