1. You use less paper. You save a lot of trees. => If you.……………………………………….……………………… …………… 2. It started to rain an hour ago. => It has……………….……………………………………………………… .………. 3. No house on the street is more modern than this house. =>This house…………………………………………………………………….. ……… 4. Colin spoke English quickly. We could understand him. (although) =>____________________________________________________________________ 5. I don’t like living in the city. It’s so noisy. (because) =>____________________________________________________________________ 6. My mother can speak English. She can’t speak French. (but) 7.Many trees are cut down to make paper. They ………………………………………………………………………………………. 8.She cleaned the house .Then she went to the market. After………………………………………………………………………………………. 9.What about going to Dam Sen Park ? Why ……………………………………………………………………………………… 10.Richard can cook very well. Richard is a ……………………………………………………………………………… 11.Mr Nam is the owner of this house. Mr. Nam is belong ………………………………………………………………………. 12. The Red river is 1,149 km long. The Nile River is 6,650 km long. =>The Nile River s much………… ……………………………………………… 13. The children like to watch dragon dance in the street at Tet. =>The children enjoy …………………………………………………………… 14. Phong was sleepy, but he still stayed up late to watch the end of the game on TV. =>Although. ………………………………………………………………………… 15. Our resources of energy will soon end because we don,t try to save it. =>If …………………………………………………………………………………. 16. She likes to live in the countryside. =>She enjoys ……………………………………………………………… 17. I had a bad cold, so I didn’t go to school yesterday. (Rewrite this sentence with “because”) -> …………………………………………………………………………………….. 18. Lan can sing very well. She can’t play the piano. (Combine these sentences with “although”) -> …………………………………………………………………………………….. 19. We make the air dirty because we use the car all the time. (Rewrite this sentence with “If”) -> …………………………………………………………………………………….. 20. They have never visited to Ho Chi Minh City before.  This is the first time they ___________________________________________________________ 21. You use less paper. You save a lot of trees.  If ________________________________________________________________________ 22. Colin spoke English quickly. We could understand him. Although______________________________________________________________ Ex7. Reorder the words to make meaningful sentences. 1. Sydney / the / cleanest / the / is / and / the / most / in / city /./ world / beautiful ________________________________________________________________________ 2. If/ pass/ exams/ give/ good/ my/ ./ will/ mum/ with/ grades/ me/ laptop ________________________________________________________________________ 3. most/ London/ tea/ is/ popular/ the/ drink/ in. -> …………………………………………………………………………………….. Ex8. Fill in the blanks with the correct prepositions. 1. I'm sitting______________ Nam and Ba. 2. The population______________ the world is growing. 3. You should put them ______________your bag. 4. I often help my mom ______________Sundays. 5. The farmers are loading the truck______________ vegetables