The trains leave every 15 minutes; if you miss ____ , you don’t have to wait long for another.
_______ you don’t have much experience in this field, why don’t you ask Professor Wang 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.
—What do you think of teaching? —I find it fun and demanding. It is a job____ you are doing something serious but interesting.
—Our teachers and parents always warn us not to smoke. —Yes, actually, the risk of heart disease is a powerful argument ____ smoking.