Ex 3. Chữa lỗi sai. 1. Hundreds of houses destroyed when a tornado hit the small town of Texas. A B C D 2. There was a big storm in this village before I came here. A B C D 3. Would you like playing football with us now? A B C D 4. We are looking forward to see you in April. A B C D 5. The island has been serious polluted by a copper mine. A B C D 6. It is dangerous letting the children play with matches. A B C D 7. Lisa would find the milk if she look for it in the fridge. A B C D 8. The telephone was invention by a Scotman, Alexander G. Bell, in 1876. A B C D Ex 4. Rewrite 1. It started raining an hour ago. -> It has ..................................................................................................................................... 2. You practice your English regularly, or your English does not improve. -> If you …............................................................................................................................... 3. People can not enjoy the view because there are so many billboards in our city. -> If ………………………………………………………………………….………………… 4. If I could swim, I would go scuba diving with Terry. -> Because ……………………………………………………………………………………. 5. If you don't take care of those shoes, they won't last for long. ®- Unless ................................................................................................................................. 6. The children left the house. Then the house collapsed. → The children ………………………………………………………………………. (before) 7. Does Mr. Hasu teach them Japanese? -> Are ………………………………………………………………………………………… 8. She will open a new restaurant next Monday. (opened) -> ……………………………………………………………………………………………… 9. She’s very pleased to go away on holiday soon. -> She’s looking …………................................................................................................... 10. Travelling around Viet Nam is interesting. -> It’s ………………………………………………………………………………………… 11. It was such an exciting match that all the fans shouted loudly. -> The match was so …………………………………………………………………………. 12. Our grandfather often told us stories when we were small. (used) ...................................................................................................................................................... 13. Could you lend me some money? -> Would you mind …………………………………………..................................................? 14. Our form teacher will hold a class discussion next Monday. -> A class .................................................................................................................................... 15. John got Ann’s letter yesterday. He was very surprised. (to get) ...................................................................................................................................................... 16. We hurried to school. We didn’t want to be late. (so as) …………………………………………………………………….……………………………