A mother gets on the train with her tow c___little john and little marry.john has so m___questions,such as 'why does that policeman ask to see our tickets b___we get on the train?' 'why c___i lean out of the window?' her mother g___impatient
finally,little john asks ,'w___is the name pf the lastt station,mommy?
‘i don't know ,john,and would you please s___bothering me?i'm trying to read'
A___a few minutes ,john says,'it's too b___that you don't know the n___of the last station.Mary got off the train there.