Dr. Hooper at Michigan United Hospital is the world’s______authority on knee rep

游客2025-06-17 15

问题 Dr. Hooper at Michigan United Hospital is the world’s______authority on knee replacement surgeries.

选项 A、led
B、leader
C、leading
D、leaders

答案 C

解析句子中的authority的意思是“当权者，权威”，四个选项中能够修饰它的词只有形容词leading，意思是“最重要的，首屈一指的”。

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