单选题
Although nobody
acknowledged
his presence, Mr. Smith knew he had been recognized.
A、
recognized
B、
assented
C、
admitted
D、
attributed
【正确答案】
C
【答案解析】
acknowledge意为“承认”，admit也有“承认”之意。其余选项 A意为“认识”；B意为“赞成”；D意为“贡献”。
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