II> Look after, look up, look for, look up, go on, turn on , turn off, turn up, turn down 1. I’m sorry but I have to stay home and look…………… my baby. 2. It’s too noisy . Can you turn ……………. the sterio? 3. If deforestation goes……………., there will be no forest left in 20 years. 4. It’s getting dark. Would you mind turning…………… the light? 5. I have lost my new pen .I’ve look …………………. It since 7.30. III.Use and ; but ; because ; or ;so ; therefore;, however to fill in the blank. 1. I opened the door ................ looked out. 2. I arrived 20 minutes early, ............ I had time for a cup of tea. 3. We looked everywhere. ............., we could not find the keys. 4. I read the book, .......................... did not understand it. 5. We had to wait .......................... we arrived early. 6. I would like to go swimming. ...................., I have too much work to do. 7. Do you know his address ......................... telephone number ? 8. Yesterday , Lan went to the stationer's to buy some notebooks , a pen…………………….a compas. 9. John is sometimes rude. ……………………… , I am very fond of him. 10. Hoa's eyes are weak. ……………………. , she has to wear glasses. 11. He didn't take a raincoat along with him , ……………………….. he got wet. 12. Quang failed the exam . …………………………. he was very lazy. 13. Mary eats green vegetables. …………………………… , she can get enough vitamins. 14. Which color do you want - red , green , yellow ………………………. blue? 15. She isn't English ………………………….. she speaks English perfectly