We have to wear a uniform at school.改为否定句We have to wear uniform at school.改为否定句

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We have to wear a uniform at school.改为否定句We have to wear uniform at school.改为否定句
We have to wear a uniform at school.改为否定句
We have to wear uniform at school.改为否定句

We have to wear a uniform at school.改为否定句We have to wear uniform at school.改为否定句
应该是:
We don't have to wear a uniform at school
我们上学时没必要穿校服

have to 不得不,否定是 不必 needn't
We needn't wear a uniform at school. 在学校我们不必穿校服。

解答如下:
We don't have to wear a uniform at school.
我们不需要在学校穿校服。

We need‘t wear a uniform at school.