. Which do you enjoy the coming weekend picnicking or a visit to Shanghai World Expo?A.

问题补充：

. Which do you enjoy the coming weekend, picnicking or a visit to Shanghai World Expo?

A. to spend

B. to spending

C. spending

D. on spending

答案：

(答案→)A. to spend

B. to spending

C. spending

D. on spending

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