I am often asked whether I regret __________my PhD project.
A no to finish
B. not have to finish
C. having not finished
D. not having finishing
正确答案:D
regrettodosth.后悔要去做某事;regrethavingdone\/doingsth后悔做过某事其否定形式regretnothavingdone/doingsth.题干意思:别人经常问我是否对未能完成PhD计划而感到后悔
