—Where did you get to know her? —It was on the farm _______ we worked.
It was ___ the quality of life in the future ___ I took this training course, not just to make more money.
With a lot of difficult problems _ , the manager felt like a cat on hot bricks.
Mr Black has two sons, one of ________working as a doctor.
—Who is the man ______ by a group of students there?—A professor _____ research on physics.
— You were late again, Peter.—Sorry, I ______ to be here on time, but the traffic on the roads _____ heavy.