--When shall we meet again next Saturday or Sunday? day is OK. I will be free

问题补充：

----- When shall we meet again, next Saturday or Sunday?

----- day is OK. I will be free next weekend.

A. All

B. Any

C. Both

D. Either

答案：

A. All

B. Any

C. Both

(答案→)D. Either

解析：根据后文描述，可知答案为D