Найдите ошибку. 1. who does play the violin? 2. what you mean? 3. i am not understanding the plan. 4. the soup smell really good. 5. how much it costs? 6. i am thinking he's a very intelligent boy. 7. it often raining in autumn.

1. Who plays the violin?
2. What do you mean?
3. I don't understand the plan.
4. The soup smells really good.
5. How much does it cost?
6. I think he is very intelligent boy.
7. It often rains in Autumn.