1) My father is in the bedroom.
2) My brother wants to go to the kitchen.

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1)
Anna: My father is in the bedroom
Correct: My father is in the bedroom.
Explanation: Always end a sentence with a period (.)

2)
Anna: brother want in the kitchen
Correct: My brother wants to go in the kitchen.
Explanation:
*Since you are talking about your family member, use my to begin the sentence. 
*A singular subject (brother) takes a singular verb (wants), whereas a plural subject takes a plural verb.
*to go = Use this phrase to complete the idea of the sentence.
*Always end a sentence with a period (.)

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Hello, Anna! Thank you for submitting your homework! Keep it up. I enjoyed our class tonight. I am looking forward in having a fun class with you again. See you! Enjoy your weekend. :)