Write an application to your Headmaster asking his permission to leave school earlier on account of sudden illness.

08 May,2015 
The Headmaster/Principal 

Rotary School & College,Mirpur-14 Dhaka-1206 

Subject: An application for leave for the remaining periods. 

Dear Sir, 
I beg most respectfully to state that after reaching school I have suddenly been attacked with fever and I am quiet unable to stay in the class any longer. 
I therefore, pray that you would be kind enough to grant me leave for the remaining periods 

Your most obedient pupil 
Razia Sultana Shampa Class VI 

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