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16. We had dinner in a restaurant. А. а В. an C. the D. O 17. Thank you. That was very nice lunch. А. а B. the С. an D. O 18. Mark Twain, American writer, wrote "Life on the Mississippi River". A. the В. а C. an D. O 19. Paris is splendid by night. A. a B. the С.О D. an 20. We might be ...