After his journey from abroad , Richard Jones returned home, .A. exhaustedB. exhaustingC.

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(答案→)A. exhausted
B. exhausting
C. being exhausted
D. having exhausted
解析：考查形容词用法。Exhausted感到疲倦的（修饰人或者与人有关的事物）；exhausting令人疲倦的（修饰事物）；句意：在到国外旅游以后，Richard Jones回到了家，筋疲力尽。本句中的exhausted是对句子主语进行说明。故A正确。