It is cold. It is windy. It is rainy. I am in my room. It is warm in the room. I am in the armchair. I've got a book. It is good. My exercise books are on the desk. My little sister is on the carpet. Her toys are on the carpet, too.
Today is very warm. - correct
I speak Russian.
I live in the Russia.
I have a house.
I am sitting on the internet.
I am sitting on the chair.
I am going to sleep tonight.
<span>I had a headache,so I <u><em>had to</em></u> take some medicine.</span> - У меня болела голова, поэтому мне пришлось принять лекарство.
По моему правильно. Там все слова правильные я проверил кое где.