The students were all tired, but ___ of them stopped to have a rest．

—Peter, what have done with the poor dog? He is wet through!—Not ______, mum! I never do the same thing a second time. 

—Could you buy us _________ drinks? —Sorry, I don’t have _____ money. 

This is _______ pen.

--I’m a little hungry, Mum.--There are some cakes on the plate. You can take _______.