I _____ for five minutes; why don’t they come?
_____, he has a lot of knowledge about computer.
—I’m worried about the coming test!—______, you can do it!
_______ you don’t have much experience in this field, why don’t you ask ProfessorWang for advice?
—Shall we have a smoke here?—No, we _____ because this is gas station and the worker is carrying some petrol.
—Linda, I have to stay at school and take some courses next month, how about you?—I ____ to Canada at this time next month since I have got the visa.