Fill in each gap with a preposition to make an idiomatic expression: 1. I don't show affection …….long-haired boys. 2. My wife made a great contribution ……….my success. 3. She's an expectant mother. She's going to give birth.........a baby in a few days. 4. Why does Mrs. Brown often make a complaint……... her neighbors? 5. John is very good at mathematics, but he takes great interest ……….science 6. Please have a careful look ……... ...this photograph and tell me where Paul is 7. For generations our people got victory. .. .many enemies and drove them away. 8. The Press is called the fourth estate; it plays an influence.......the public 9. The newspapers made a fuss…….. Mr. Han's statement last week. 10. Mr. Long will take charge. ..arranging the date.