Preposition or particle ? 1 Bringing UP the children is an art, not a technique. 2 They ran UP the stairs and shouted fire ! 3 The woman looked AFTER the farm

Preposition or particle ? 1 Bringing UP the children is an art, not a technique. 2 They ran UP the stairs and shouted fire ! 3 The woman looked AFTER the farm while the men were away fighting. 4 More population might bring ABOUT an ecological catastrophe. 5 He's decided to take UPchess to calm his nerves. 6 When we visited Rome, we came ACROSS a nice little restaurant. 7 The dog wasn't afraid, it jumped THROUGH the flames. 8 Don't turn DOWN their offer, it sounds interesting. 9 He is running IN his new car. 10 I saw him pass BY my window.