George reads the newspaper every morning. That's    habit. 

 —Is this your baseball, David?   —No, it's not     . It's Helen's.

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

— ______ did you spend your summer vacation last year?— In England. 

Tom and Mike are good friends. _____ often help each others.