Idiom
Hemoglobin ,the oxygen carrying substance in red blood cells,is a

Nuclei acid
Proteins
Fats
Carbohydrates

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Idiom
To turn the other cheek

To respond to violence with non-violence
To respond to violence with violence
To sulk and suffer
To be indifferent to peace overtures

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Idiom
To turn over a new leaf

To cover up one's faults by wearing new masks
To shift attention to new problems
To change completely one's course of action
To change the old habits and adopt new ones

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