It is so hot today． Why not swim in the river？
No， we can't swim in the river． Our teachers and parents always warn us ________in the river． It's too dangerous．（ ）
A．to not swimB．swimming
C．not to swimD．not swimming
It is so hot today． Why not swim in the river？
No， we can't swim in the river． Our teachers and parents always warn us ________in the river． It's too dangerous．（ ）
A．to not swimB．swimming
C．not to swimD．not swimming
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