关于英语句子（mustn't） 用must.mustn't以及方框中所给单词完成句子.
\u7528\u82f1\u8bed mustn't,park,wrong\u9020\u53e5You musn't park at the wrong place.\u7981\u6b62\u5728\u9519\u8bef\u4f4d\u7f6e\u505c\u8f66
2.All the students needn't wear uniforms in late November
对
must :1. 必须2. 必然要, 必定会3. (做出逻辑推断)4. (表示坚持)n.
1. 必须做的事, 必不可少的事物vt. & vi.
1. （表示必要或很重要）必须2. （提出建议）应该，得 3. （表示很可能或符合逻辑）一定
mustn`t 意思是“不准”
所以must 的否定要换位： needn`t 和don`t have to
第二句，你要从must表示的意思来理解，原句里边，must表示必须的意思
后面2个句子，第一个mustn't 是禁止的意思
第二个needn't是不需要的意思
从语义来理解，应该用第二句。
也许老师会从情态动词的否定式开讲这个知识点，语义来理解更简单直接一些，也不容易错。
2正确
原句是说“必须”，改为否定是“不必须”，也就是“不需要”，即needn't.
2对。
must 作义务，必须解时的否定形式，用needn't
选 【2】
must的否定就是needn't
没有mustn't 这个说法，记住就可以了
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