Esther:

A garage sale is when you sell so good.
I think having a garage sale is fun. If have a garage sale, l will bring
old books, pencils, clothes out to sell because i don't use it anymore. I think having a garage sale is good because can buy the cheep stuff is needed.

Correct:

A garage sale is when you sell old items such as furniture and clothes. I think having a garage sale is fun. If I have a garage sale, I will bring old books, pencils and clothes out to be sold because I don't use them anymore. I think having a garage sale is good because we can buy cheap items that we could use.

Hi, Esther! I'm glad that you made your homework and submitted it. But it could be better if you submit your homework earlier before our lesson starts so that I can correct it before our class. However since we already corrected this homework during our lesson , I just want you t be reminded with those correction I have given to you. Keep up the good work Esther, I know you always doing your best. Have a good day^^