【正文】
ttend the concert. A. could B. must C. would D. should 16. You _______ water the flowers. It39。 can D. may not。 can B. mustn39。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 be B. can be C. must be D. may be 3. _______ you hear the radio from the other side of the room? A. Can B. May C. Must D. Should 4. Mr. Green _______ live in the country than in the city. A. had better B. would like C. would rather D. would better 5.