单项选择题

He had ______ an emergency operation for a stomach condition, which makes doctors solemnly assured that he was potentially fatal.

A．underlain
B．underlined
C．undergone
D．undertaken
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单项选择题
A woman enters a hospital ward determined to torture the comatose wife of her ex-lover and ______him for herself.
A．acclaim
B．exclaim
C．proclaim
D．reclaim
单项选择题
More probably he had tapped a fresh source of energy in himself—the power of love—which made him feel______.
A．invaluable
B．invincible
C．invariable
D．invisible
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