PREPOSITION 1 Fill each blank with a suitable preposition or adverb particle to complete each of the following sentences. 1. When making decisions, people tend to weigh _____ their options carefully, which is sensible as long as you don't lose sight of what's important. 2. You should check all your files _____ the screen, then back them all _____ onto a storage device. 3. Asking Barry to pay _____ meals is like getting blood _____ of a stone. 4. They have been struggling to rebuild the system _____ the ground _____ in the past 10 years. 5. The eldest son of the Queen will succeed _____ the throne when she passes _____. 6. The journalist reported that the city was _____ the brink _____ a crisis. 7. I could tell ______ his face that he was very angry ______ something. 8. She is very knowledgeable _____ History, but shes ignorant _____ Maths. 9. Rosy still failed to catch _____ to what the teacher was explaining about. Its quite _____ her ability. 10. A teenage girl sat _____ a train chewing gum and staring vacantly _____ space.