It was foolish the French princess to the English prince, who cheated on her without
mercy.
A. for; believe in
B. of; believe
C. of; believe in
D. for; believe
网友回答
A. for; believe in
B. of; believe
(答案→)C. of; believe in
D. for; believe
解析：考查短语.be foolish of 是愚蠢的.believe in sb相信某人. belive in一般是强调相信其人belive一般是指相信某人说的话,或所做的事.故选C.