Shanghai is so full of it seems as if things never stop.A. strengthB. spiritC. forceD. en

问题补充：

Shanghai is so full of, it seems as if things never stop.

A. strength

B. spirit

C. force

D. energy

答案：

A. strength

B. spirit

C. force

(答案→)D. energy

解析：energy “精力，活力”。A“力气”；B“精神”；C“力量，武力”。