The author of the report is well with the problems in the hospital because he has been wo

问题补充：

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

答案：

(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.