Find out the mistakes and correct them. 找出错误并改正。 ( ) 1. I have to put on my boots on a rain day. A B C ( ) 2. Li Ming is writing an letter in the corner. A B C ( ) 3. The peas are in the stove . A B C ( ) 4. I'm a 12 year old boy . A B C ( ) 5. Danny, you should sing soft . A B C