问题补充：
Don’t think you are when you make a mistake , since no one is perfect.
A. losing face; in the public
B. losing faces; in public
C. losing face; in public
D. lost the face; in the public
答案：
A. losing face; in the public
B. losing faces; in public
(答案→)C. losing face; in public
D. lost the face; in the public
解析：考查词组：句意：不要认为在公共场合犯错是丢脸，因为没有人是完美的。Lose face“丢脸”，in public“在公共场合”，选C。
