每年的12月13日是我国的侵华日军南京大屠杀死难者国家公祭日。对于曾经的民族耻辱，我们应该（ ）
看图，读一读，选择适当句子补全对话。
A. Would you like some milk?
B. We can read books at home.
C. Good idea.
D. How is the weather in winter?
E. Why don't you play football?
如果到南极考察，下列哪段时间最适宜（ ）
