Ever since my brother graduated from the university, he _______ in the present company for 15 years and he is now chief engineer of the company .
I’m afraid I am not fit for the job, for it is ______calling for much patience.
______the room, a letter was seen lying on the desk.
Only after you finish your homework ______TV.
--- Why were you so late for work today? --- ________ to the office was very slow this morning because of the traffic.
It was impolite of him ____without ____good-bye