The author of the report is well with the problems in the hospital because he has been working there for many years.
A. acquainted
B. informed
C. enlightened
D. advised
网友回答
(答案→)A. acquainted
B. informed
C. enlightened
D. advised
解析： be acquainted with熟悉，be well informed of(about)对......消息灵通。可见，此题中应用acquainted,因为后面地介词是with.