I shall never forget those years ____ I lived in the farm ___ you visited last week.
My friend and I aregood at biology. But we don’t like geography very much.
There is clear evidence _____ smoking does harm to our health.
I want to know if I _________ smoke here. —– No, you ___________. Can’t you see the sign “NO SMOKING” there?
We can’t ______ the car.There ______ something wrong with the engine.