完成对话，通读下面的对话，然后根据上下文补全对话内容。

Gina: Hi, Mary. Your skirt is so beautiful.

Mary: Thank you very muck

G: 1_______?

M: I bought it in Yunnan.

G: Yunnan? Oh, you are so hcky. 1_______?

M: Yes, I went there last summer. I had a good time.

G: 1_______?

M: It was sunny and warm. I visited many beautiful places.

G: 4_______?

M: The people there are very friendly and kind.

G: I hope to visit it one day.

M: I'm sure you'll love it.

G: I think I will. Oh, I'm afraid I must go now, See you.

M: 5_______.

预测分析组织实现目标的资源条件和客观环境，目的在于提高计划的()

A、适应性

B、有效性

C、时序性

D、系统性