Giúp em với ạ!!!! 8. After__________peeled and chopped the vegetables, place them in boiling water for fifteen minutes. A. being B. having C. having been D. doing 9. She was very upset__________that all the places in the restaurant__________. A. to hear – had been booked B. hear – are booked C. to have heard – have booked D. hearing – to be booked 10. Did you know that learning to ski is__________than learning to skate? A. far more easier B. much easier C. so much easier D. as easy 11. A fire in the__________building could be a problem for firefighters. A. ninety-story-tall B. ninety-tall-story C. ninety-stories-tall D. ninety stories 12. Could you please refrain__________smoking in the lecture hall? A. of B. up C. down D. from 13. Proving the existence of beings from outer is a(n) __________at the moment. A. impossibility B. possible C. impossible D. possibly 14. There used to be a huge stadium__________is now a modern leisure centre. A. there B. what C. which D. where 15. If you can’t give up smoking entirely, at least try to cut__________. A. off B. down C. out D. on 16. You should be concentrating on your project__________listening to music all night long. A. so that B. even if C. rather than D. such as