一、 写出下列单词的现在分词: 1.do ____ 2.play ____ 3.dance ____ 4.sit ____ 5.make ____ 6.swim ____ 7.jump ____ 8.cook ____ 9.clean ____ 10.watch ____ 11.come ____ 12.read ____ 13.eat ____ 14.write ____ 15.sing ____ 16.go ____ 17.run ____ 18.fly ____ 19.catch ____ 20.help ____