Look out! The knife is very sharp. You _____ cut your finger. [ ]A. must B. need C. should D. may -八

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• —Tom, where is your father? — I'm not sure. He ______ in his office. [ ]A. is B. may be C. mayb
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• 如图是人体呼吸系统结构图（1）在横线上填出各部位名称．1．______2．______3．______4．______5．______（2）人体的呼吸系统由______和______两部分构成，其中能
• The book be Lucy's because her name is on the cover. [ ]A. must B. can C. need D. does -九年级英语
• — Can you go swimming with us this afternoon?— Sorry, I can't. I ______ take care of my little
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• 呼吸系统的起始器官是（）A．鼻B．咽C．口腔D．喉-生物
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• If I went to the moon, I ______ bring something unusual back to the earth. [ ]A. can B. will C. woul
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• The news be true. I know everything about it. [ ]A. can'tB. mustn'tC. needn't D. may
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