The children are full of . They have been playing all day long without resting.A. energyB.

问题补充：

The children are full of . They have been playing all day long without resting.

A. energy

B. power

C. force

D. strength

答案：

(答案→)A. energy

B. power

C. force

D. strength

解析：词义辨析, energy主要指精力，能量。strength主要指力量，强度。power主要指动力，功率，电力。force主要指外力。根据题意这里指孩子们充满精力，故选A。