问题标题:
must的否定句?Alargeholemustbedug.(否定句)Alargehole______bedug.是mustn't还是needn'tto?
问题描述:

must的否定句?

Alargeholemustbedug.(否定句)

Alargehole______bedug.

是mustn't还是needn'tto?

葛丽娜回答:
  用mustn't   我们老师说的,不是否定回答(用needn't)
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