Do you know what "paying it forward" means？ It's not paying for something before you buy it． "Paying it forward" is to do something nice for another person for no（1） 　　． Then that person does something nice for someone else．

You may think this doesn't seem like much． But this nice act can spread quite（2） 　　．

One day in December 2015， a woman was buying a meal at McDonald's in Florida， US， She also（3） 　　a meal for the person standing in line behind her． That person did the same thing， and the next person did it，（4） 　　． Soon， 250 people had done another person the act of （5） 　　！

But you（6） 　　spend money to pay for it forward． There are examples of paying it forward every day like volunteering， giving food to（7） 　　or doing something nice for someone around you．

Try it out for（8） 　　All you have to do is to look for（9） 　　things that you could do to make someone happy． Then， ask them to spread the word and do three kind things for someone else．And when someone does something nice for you， don't （10） 　　to do the same!

（1）A． space	B． action	C． reason
（2）A． fast	B． slowly	C． hardly
（3）A． made	B． bought	C． sold
（4）A． too	B． either	C． also
（5）A． madness	B． politeness	C． kindness
（6）A． would like to	B． are supposed to	C． don't need to
（7）A． the rich	B． the homeless	C． the missing
（8）A． myself	B． yourself	C． itself
（9）A． small	B． awful	C． strange
（10）A． agree	B． forget	C． decide