needn't（寒假里）,mustn't（公园里）造句

问题描述：

各三句，谢谢！

问题解答：

we needn't play too much during the winter holidays
we needn't work so much during the winter holidays
we needn't watch so much television during the winter holidays

We mustn't dump our rubbish around in the park
we mustn't catch animals in the paark
we mustn't destroy the plants in the park

We needn't do much homework in winter vacation.
We mustn't walk on the grass in the park.

自己做！