选择下列实验方法分离物质，将分离方法的序号填在横线上

A 萃取分液法   B 结晶法  C 分液法   D 蒸馏法  E 过滤法

①______分离饱和食盐水与沙子的混合物．

②______分离水和汽油的混合物．

③______分离互溶的四氯化碳（沸点为76.75℃）和甲苯（沸点为110.6℃）的混合物．

④______从碘的水溶液里提取碘．

⑤______从硝酸钾和氯化钠的混合液中获得硝酸钾．

—Excuse me, could you tell me（）for Taiwan
—The day 'after tomorrow.

A. when did you leave

B. when you are leaving

C. when are you leaving

D. when do you leave