11. It is believed that he was killed by terrorists. >He 12. I'm sorry I can't help you do your homework. >I wish 13. I can't sleep because I drink a lot of coffee. >If 14. If you aren't careful, you will cut yourself with that knife → Unless 15. I didn't listen to him and I didn't succeed. > If 16. He doesn't help her because he doesn't know her problem. >If 17. I am not good at English. →I wish 18. Tom broke the chair. The chair 19. They say that Vietnamese people are friendly. >Vietnamese people 20. They didn't begin to learn English until 1980. >It was 21. They didn't open the new supermarket until last week. >It was 22. He rushed into the burning house in order to save the child. ..in order that 23. The manager didn't sign the cheque until he returned home. > Not until 24. The work on the new bridge wasn't completed until the end of 2004. >Not until 25. She ran hurriedly to the station. She wanted to catch the train. >..............so as to......... 26. He didn't know the truth until I told him. >It was not.......

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