题目内容
Fred is always ____ because he often does something good for his health outdoors.
A. weak B. nervous C. serious D. energetic
D
【解析】
试题分析:句意:Fred 总是精力充沛,因为他经常为了他的健康户外做好事。A. weak虚弱的 B. nervous 紧张的C. serious 严肃的D. energetic尽力充沛的,根据句意,故选D。
考点:考查形容词的用法。
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