Main phrases:
hold out
the Canadian Space Agency
keep one's eye on
Main sentences:
.What do you think of being an astronaut?
.Guess what?
'At first I was nervous,but finally I decided
to introduce myself.
.I told him that he was my hero and that I
wanted to be an astronaut someday.

'He said that he dreamed of visiting space when he was young.
:To get ready,he studied hard in school.
.Twelve years later,he got a job with the Canadian Space Agency.
'After so many years of hard work,his big chance arrived!
.I asked him for advice on how to become an astronaut.
“Wll,"he replied,"it's not easy.You have to get a good education and keep your eye on your goal.