Dear _____ ,
                  i hope this letter finds u in good health... hope u are fine..i am writing this letter to advice u to how to prepare on the exam..
                                                                           i know it is  a competative exam and u must work very hard on... i am not telling u that u must study during the day time also,u must sleep not stay awake late at night, u will not be able to concentarte on ur lessons.. u must remember to pray well.god will help u .u must have confidence..confidence is the key. just remember u can do hard and do not get tooo much tensed
                                     remember what i told u..take care. i miss u .
                                                                                               yours affectionately,

please  mark it has the best answer and hope this will help u

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