根据图片及对话内容填空。
A: Look at this picture. season is it?
B: It's. What is it about?
A: It is about Day.
B: is it?
A: It's usually in.
B: What do you do on that day?
A: We often .
B: Do you trees?
A: Yes, I like beautiful trees in.
答案:【1】What【2】spring【3】Tree【4】Planting【5】When【6】March【7】plant【8】trees【9】like【10】spring