I / Choose A, B, C or D to complete the following sentences 11. I will be ____ if she manages to sell that motorbike at a high price A. surprise B. surprised C. surprising D. to surprise 12. Unless you understand, I ____ explain it again to you A. am B. was C. will D. would 13. If you know where she lives, please let me ____ A. know B. knew C. known D. to know 14. Don’t talk in class, ____ you? The teacher is explaining the lesson A. do B. don’t C. will D. won’t 15. He laughs a lot because _____ her funny face A. in B. at C. on D. of 16. I remember _____ her somewhere A. see B. seeing C. saw D. to see 17. Excuse me. Can I _____ in this area? A. smoke B. smoking C. smoked D. to smoke 18. We don’t allow passengers _____ in this part of the building A. smoke B. smoking C. smoked D. to smoke 19. Don’t forget _____ the letter for me! I won’t A. post B. posted C. posting D. to post 20. He thinks that ____ on the Internet is a waste of time A. chat B. chatting C. chatter D. to chat

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