—On which day shall we go outing in the Qiagling Mountains Friday Satutiby or Sunday? —

问题补充：

—On which day shall we go outing in the Qiagling Mountains, Friday, Satutiby or Sunday?

— is all right.

A. Either

B. Both

C. All

D. Any

答案：

A. Either

B. Both

C. All

(答案→)D. Any

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