根据短文内容，从A、B、C三个选项中选出一个语法正确的答案。Dear Jim,
How is it going?
Last Friday, our school held 1 activity—working on the farm. I'd like to share this special and meaningful experience 2 you.
Every eight students prepared farming tools together. Then, each group 3 by one teacher. We 4 a process including lining, turning, stepping and leveling the land. Although there were challenges like the hard soil and heavy tools, we created an excellent environment for the growth of vegetables. After that, the teacher taught us 5 cucumber frames (黄瓜架). "It seemed easy, but in fact, it was quite difficult to make 6 stand upright." said Liu Li, one of my classmates.
You can't imagine 7 happy we were at the end of the day! More amazingly, we now have a 8 understanding of valuing food than before. "He began to make sure of the zero-waste dinner, and loved planting in his bedroom," said a student's mother when talking about her 9 progress. Our headmaster said,"Since everyone loves farming, we 10 a small garden in the empty school land next year. In this way, you can enjoy the simple joy of farming at school." What good news!
Yours,
Bob
