练一练

写出下列动词的现在分词形式（动词ing形式）

1.fall _______ 2.clean________ 3.carry________ 4.sit________ 5.stand________ 6.come_______ 7.drink______ 8.put__________ 9.help________ 10.ride______ 11.jump________ 12.sing_______

falling cleaning carrying sitting standing coming drinking putting helping riding jumping singing