You mustn't give your cat fish bones.改为( )( )your cat fish bones.
People made kites out of wood long long ago.改为People( )wood( )( )kites long long ago.
You needn't get there before 8:00a.m.改为You( )( )( )get there before 8:00a.m.
You shouldn't frighten the cat改为You( )( )( )frighten the cat.
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