You are Ninad / Nitya, from class 6th B who is studying in Oxford school,
Bangalore. Write a letter to the principal requesting for two days leave giving an
approriate reason
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The lymphatic system is a network of tissues and organs that help rid the body of toxins, waste and other unwanted materials. The primary function of the lymphatic system is to transport lymph, a fluid containing infection-fighting white blood cells, throughout the body.
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