根据句意, 用括号中所给词的适当形式填空。
Will people live____ 100 years old?   ( be )
Mother____  (sweep) the floor when I             (leave) home.
____ My friend Eve told me she                (be) going to buy a new computer.
____ It's necessary for young people                    (experience) different things.
____ My dream is to be a                   (profession) athlete.