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he exam. I guess so. It’ s not difficult after all. A. should B. could C. must D. might 2. She ___ have left school, for her bike is still here. A. can’ t B. wouldn’ t C. shouldn’ t D. needn’ t 3. I’ m sorry. I ___at you the other day. Fet it. I was a bit out of control myself. A. shouldn’ t shout B. shouldn’ t have shouted C. mustn’ t shout D. mustn’ t have shouted 4. You __ the exam, but you spent all your time playing. A. can pass B. could have passed C. could pass D. can have passed 5. Catherine, I have cleaned the room for you. Thanks. You ____ it. I could manage it myself. A. needn’ t do B. needn’ t have done C. mustn’ t do D. shouldn’ t have done 6. My MP4 isn’ t in my bag. Where_____I have put it? A. can B. must C. should D. would