听力原文：M: I have a special guest today, Shirley. Shirley, you truly have an amazing gard

en. Could you let us know how you put this together？

W: This spring I took a square-foot gardening class, and I decided to try some of the things I've learned. Um, one of the most important things in square-foot gardening is that you choose a good location. You need at least 6 to 8 hours of direct sunshine. You also need to choose a location that has good drainage, and it should be a convenient location. A garden is a lot more fun if you are walking by and seeing it all the time. Um, you need to decide what kind of containers you want, or, in my case, I used wooden boxes.

M: Well, Shirley, I've noticed these vertical beams. I've never seen that before. Could you explain that to us a little bit？

W: Right here we have some cantaloupe, and cantaloupe take a lot of space when you grow them out on the ground, and I don't have that much space, so I just grow them up. I just made a metal frame, and took some string. I just allow them to grow up, and they will support themselves.

M: This is amazing. I noticed in this garden, there is a vast amount of vegetation.

W: Well, over on the far end, I have tomatoes growing vertically. In front of those I have green peppers, basil, strawberries, beets, green beans, corn, carrots and so on. Right here, as I said before, I have cantaloupe. Down at the bottom, I have some Mexican tomatoes. And down at this end, I have eggplant, another kind of pepper called banana peppers, cucumbers, okra, pumpkins...and I think that's about it.

M: I'm so impressed. I'd tike to thank you very much for having us in today to look at your garden.

(23)

A．By attending a class.

B．From her parents.

C．Through a gardening magazine.

D．From her neighbors.