II. BÀI TẬP VẬN DỤNG BT 1. Khoanh vào đáp án đúng 1. They have turned (down/ up) Jim's application for the job. 2. You may have to deal (with/ about) many problems in the workplace. 3. Small birds mainly live (on/off) insects. 4. When does the plane take (off/ up)? 5. Why did you decide to take (on/ up) skiing? 6. Remember to warm (up/ down) carefully before you play sports. 7. There's no need to dress (up/ down). It is just an informal party. 8. Have you worked (out/in) the solution yet? 9. Oops, I think we're run out (of/ on) petrol. 10. Jim seems not to get (on/off) well with his classmates. 11. My husband has decided to set (up/ down) a business on his own.