1. We decided not to go out for meal _________ we were too tired. A. but             B. because          C. so          D. and 2. Who is going to __________ your children when you're at work? A. look for            B. look up           C. look after        D. look out 3. I like bananas, __________my brother doesn't. A. because            B. but                 C. and          D. even though 4. He is tired ________ he stayed up late watching TV. A. so                 B. because           C. but          D. and 5. Her parents saw her _________ at the railway station. A. in                 B. for                   C. up             D. off 6. Can you turn................ the light? It's too dark. A. on                    B. off                C. in           D. for 7. What are you looking..................... ? -My picture book. I've lost it. A. for                   B. off                   C. in          D. on 8. She forgot ______ off the gas before going out. A. turning          B. turn           C. to turn         D. turned 9. I suggest ______ money for the poor people in our neighborhood. A. saving           B. to save          C. save            D. saved 10. In order to save electricity, an ordinary 100-watt light bulb can be replaced by ______. A. a 1000-watt light          B. a lamp      C. an electric bulb       D. an energy-saving bulb