Underline it and write the correct answer in the space provided

IV. Each sentence below contains an error. Underline it and write the
correct answer in the space provided.
1. My sister's pictures are exciting but she's school marks are quite bad.
2. Tom forgot his homework, but his brother didn't forget him. O
3. In mine free time I play the piano with my mother.
4. They have got a little dog but I don't know it's name.
5. If you lend me your novel. I will lend you my.