摘要：1677] You throw waste everywhere, or you be punished for that. [译文] 严禁乱丢废纸.否则要受处罚. A. needn’t; can’t B. mustn’t; may C. shouldn’t; need D. daren’t; can [答案及简析] B. mustn’t do sth. 严禁做-.

网址：http://m.1010jiajiao.com/timu_id_4071556[举报]