1. I drew a picture.

2. I broke my brother's toy.

3. Teacher taught English to my younger brothers.

4. I sang a Korean music on Friday night.

Hi James,

Thank you for doing your homework. It is good that you were able to change the verbs to its simple past form. However, I would also want you to be careful of your capitalization, punctuations and usage of preposition. We use preposition "on" for days of the week, alright! So please study and take note of my corrections. Have a good night!

Teacher Julie