Answer:
My dear brother,
I hope you are fine and studying good in Hyderabad. I glad to receive your letter, as you mentioned your marks also. You got less marks in English subject. You are one of the hardworking students in your hostel but you're weak in English subject.
You can improve your English by reading English newspaper or magazines. To speak fluent English, you should have a conversation with your friends in English. Learning grammar will boost up your vocabulary. Try to write some articles or essays in English.
Adopting the above measures your English surely will be improved. I hope you'll apply all my tips to improve your English and work hard to obtain good marks next time.
Your loving sister
Neer Tanwar
Step-by-step explanation: