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wed to attend the concert. A. could B. must C. would D. should 16. You _______ water the flowers. It39。t you tell me more about your problem? I _______ talk about it any more. A. would rather not to B. wouldn39。 can D. may not。 may C. needn39。 can B. mustn39。t do C. I should have done D. I should do 11. You _______ return the book now. You _______ keep it till next week if you like. A. can39。s already an hour late. Something _______ to her. A. can have happened B. must have happened C. should have happened D. may have happened 10. Did you blame him for his mistakes? Yes, but _______ it. A. I shouldn39。t B. coul