19. Mary is watching a film. She really likes it. Mary is really................... A. to interest B. interest C. interested D. interesting 20.................... to do homework today? A. Have you B. Do you have C. Must you D. You must 21. She knows that he worked really................... this semester. A. good B. hardly C. better D. hard 22. Stop, boys! It's __________ near the streets. a. dangerous for playing b. dangerously to play c. dangerous to playing d. dangerous to play 23. Do you mind if I switch on the radio? –................... A. No, thank B. Yes, go ahead C. No, not at all D. Yes, you can

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