Ex. 1 . add + ing to the given verbs leave - ………………… stand - ………………… live - ………………… swim - ………………… cook - ……….………… fly - …….…………… study - ….…………… read - ……….………… write - ………….………… try - ……….…………… put - ………….………… lie - ……..………………

leave - leaving 
stand -  standing 
live -  living 
swim - swimming 
cook - cooking 
fly - flying 
study - studying 
read - reading 
write - writing 
try - trying 
put - putting 
lie - lying