Mr Liu is ____ unusual teacher.He has written _____ useful book for his students.
---Why are you so excited today?---We were told _________ a picnic this weekend.
---_________ film do you prefer, Lost in Thailand or Life of Pi, Madee?---Lost in Thailand. I like comedies because they often make me laugh.
---Do you know Mo Yan?---Of course. He won the 2012 Nobel Prize for Literature _________ the age of 57.
---You won the first prize in the Physics competition.---__________. I made several terrible mistakes.
---I visited the Purple Mountain Observatory last Sunday.---__________ Why didn’t you tell me earlier?