______ before, his first performance for the amateur dramatic group was a success.
A. Though having never acted
B.As he had never acted
C. Despite he had never acted
D. In spite of his never having acted
这道题正确答案是D 我想问D中having acted是什么用法? 是因为in spite of不能接句子变成动名词了还是跟时态有关系?