Dear Asheqa,
Below, I corrected the spelling and grammatical mistakes in your paragraph. However, you may re-write it without repeating "he" so often. This way your paragraph becomes more coherent.
I don't understand what you mean by:
"He lives in Al Shada'a mosque", does he live in a mosque?
"white theet"
??
....
My favorite announcer is Rajy Al Hemes. He is 22 years old. He lives with his parents. He hasn`t got any brothers or sisters. He lives in Al Shada`a mosque (masged) in Gaza. He works in Al aqsa T.V channel. He is kind, patient, quiet and clever. He tells the truth and he is generous in every thing. He is a well educated and a highly cultivated person. Although he lives in a bad condition, has a lot of problems, and suffers much from the Israeli occupation, he always tells jokes and likes to see other people smile. Rajy has a great hair, white theet and very very beautiful dark brown eyes