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His doctor was clearly a family friend;his wife had only her husband's interests ______hea

题目

His doctor was clearly a family friend;his wife had only her husband's interests ______heart.

A. within

B. at

C. by

D. with

参考答案
正确答案:B
[解析] 用介词at,在……的心里;at heart/to have…at heart很关心某事物。