here is the answer of the questions.

1. You are not allowed to smoke on the airplane. 2. I couldn't help laughing when he tripped! (laugh) 3. I enjoy going to clubs. (go) 4. She expects people to help her, but she never helps anyone! (help) 5. My doctor advised me to quit smoking. (quit) 6. Please stop shouting_. I can hear you fine! (shout) 7. I don't feel like cooking_. Let's go out to a restaurant. (cook) 8. Would you mind _opening_ the window? It's very hot in here. (open) 9. My remote control doesn't work. Try changing_ the batteries. (change) 10. In Los Angeles, smoking_ is not allowed in any building. (smoke) I have a good news teacher. Finally, I change my phone. is it expensive? No~! It seems like expensive but it is almost free. About two month ago, Its price was high but it is released free. so my cost of telephone will be reduced. I'm very happy to get this chance! It is not a latest model but Im satisfied with it.

Wow [이름]! You did a marvelous job! You got a perfect score! Yahoo! Even your sentences were great too. ^^ Oh my god! I can\'t wait for us to reach the next level. But don\'t forget to go over the words you use. Teacher Nina   1. You are not allowed to smoke on the airplane.>> Correct! 2. I couldn\'t help laughing when he tripped! (laugh)>> Correct! 3. I enjoy going to clubs. (go)>> Correct! 4. She expects people to help her, but she never helps anyone! (help)>> Correct! 5. My doctor advised me to quit smoking. (quit)>> Correct! 6. Please stop shouting_. I can hear you fine! (shout)>> Correct! 7. I don\'t feel like cooking_. Let\'s go out to a restaurant. (cook)>> Correct! 8. Would you mind _opening_ the window? It\'s very hot in here. (open)>> Correct! 9. My remote control doesn\'t work. Try changing_ the batteries. (change)>> Correct! 10. In Los Angeles, smoking_ is not allowed in any building. (smoke)>> Correct! I have a good news teacher. >> Correct! Finally, I change my phone. >> Correct! >> OR: Finally, I bought a new phone. is it expensive? >> Correct! No~! It seems like expensive but it is almost free. >> Correct! >> OR: No, it seems to be expensive, but it is almost for free.About two month ago, Its price was high but it is released free. >> Did you mean:  About two months ago, the price was high but when it was released it was discounted. so my cost of telephone will be reduced. >> So the cost of telephone was reduced. >> OR: The cost of my mobile was reduced. I\'m very happy to get this chance! >> Correct! It is not a latest model but Im satisfied with it. >> It is not the latest model but I\'m satisfied with it. >> OR: It might not be the latest model but I\'m satisfied with it.