问题补充：
125. The old man is quite able to take care of himself, he has seen the elephant. The underlined part means .
A. The old man knows the elephant.
B. The old man once saw the elephant.
C. The old man can take care of the elephant.
D. The old man is full of experience.
答案：
A. The old man knows the elephant.
B. The old man once saw the elephant.
C. The old man can take care of the elephant.
D. The old man is full of experience.
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