【题目】After his journey from abroad, Richard returned home，________．
A.exhausting
B.exhausted
C.being exhausted
D.having exhausted

【答案】B
【解析】exhausted“感到筋疲力尽的”，说明主语(人)的状态；exhausting“令人筋疲力尽的”，说明主语(物)的性质或特征。