people move up and down along in boats

people move up and down along in boats What makes it ____ up and down?A.move B.to move C.moved D.moves From example ,some people can't see ,and they use a dog to help them move( ).A.up B.back C.around D.across move your hands up and move up and down等于哪一个单词 Make the clock__(move)up and down. 翻译People move up and down the canals in boats to go shopping or visit their friends. 英语翻译People move up and down along the canals in boats to go to work,go shopping or visit their friends. what goes up and down but doesn't move? 是什么意思? break up and move the earth(词语解释） suck it up and move on 啥意思? Dont move your hands up and down 是什么 year by year和move up and down的翻译 make the arms ahd legs move up and down How can people move as fast as animals and fish? How can people move as fast as abimals and fish? he can people move as fast as animals and fish How can people move as fast as animals and fish?