Now, write an regues letter

Dear grandmother!
How are you these days? Is your flower garden good? My family is still healthy. From the beginning of the school year until now, I have always achieved high scores. Grandma, I'm about to take the final exam of the semester. I will try to get high scores to make you and my parents happy. It's almost Tet, right? My family is going to come down to celebrate Tet with you. I'm looking forward to that time!