Why do you want a new job ____ you’ve got such a good one already?
___ he came to study in the university, he has made much progress in the study of English.
He suddenly saw Sue _____ the room. He pushed his way ____ the crowd of people to get to her.
I'll come and see you _____ I go to the countryside.
No one helped me . I did it all myself .
Don't try to get off the bus ____ it has stopped.