英语中祈使句的否定形式是在动词原形前加Don't,为使祈使句语气委婉,可加什么

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• 英语中祈使句的否定形式是在动词原形前加Don't,为使祈使句语气委婉,可加什么
• 英语中祈使句的否定形式是在动词原形前加Don't,为使祈使句语气委婉,可加什么
• 以Don't开头的英文祈使句
• 英语 将下列句子改为祈使句You mustn't be worried about your lessons.You should finish the work before Friday.You can't smoke in the office.We should go shopping after school.You must be careful when you cross the street.They can play football on the playground,He has to sweep the floor today.You can't take photos in the museum.