There is one mistake in each sentence. Underline and correct the mistake

I. There is one mistake in each sentence. Underline and correct the mistake.
1. A lot of people are good artists and they are successfully in life.
2. Music promote creativity, social development, and personality.
3. The Mona Lisa is a portrait paint by the Itallian artist Leonardo da Vinci.
4. Your violin is the same with the one I've just bought.
5. My mother doesn't  like rock music and I don't too.
6. The weather of Hong Kong is different from that of Canada's.
7. How long  do you goto the movies? - Twice a month.
8. The weather today is not so hot as it is yesterday.