(8)---May I swim in the lake,Dad? ----No,you---.Look! Here i

(8)---May I swim in the lake,Dad? ----No,you___.Look! Here is a notice "No Swimming!"
---May I swim in the lake,Dad?
----No,you___.Look! Here is a notice "No Swimming!"
A may not B mightn't C mustn't D needn't
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