题干
阅读对话, 选择正确的答案。
Zhang Peng: Look! Tomatoes．
Jack: Wow, they're yellow．
Zhang Peng: Yes．But they're good．
John: What are these?
Zhang Peng: They're green beans．
John: They're so long．
Amy: Are these carrots?
Zhang Peng: No．They're potatoes．
