20. ___________ made the student __________ interest in his study.

Being punished20. Punished; lose
C; lose D. having been punished; lose
为何选C不选D. ___________ made the student __________ interest in his study.
A. Being punished; to lose B

惩罚使学生失去兴趣。无论是受过惩罚的还是没有受过惩罚的。
选D就代表那些曾经受过惩罚的了

你好！ D，表示过去的过去。C表示过去，以题目的意思应该只是过去的意思，呵呵 如有疑问，请追问。