Write a letter to your father asking him about the health of your mother

Examination Hall,
City A.B.C.
March 20,2011.
My dear Father,
A.A I have come to know that mother is suffering from high fever.I am worried about her.She is already weak enough.Irequest you to get her checked by some specialist.Ask her tom take her medicine regularly.Inform me about her present condition by the return of post.
Your loving son,
X.Y.Z.