Question

9. Tom _________ late over and over, his boss was very disappointed. A. having been B. been C. to be

选A不行吗

Answer 1

你好。你的句子是独立主格结构，用以取代原因状语从句。答案是A。因为over and over是在disappointed前面发生的，应该是“完成式”概念。
== AS Tom had been late over and over,his boss was very disappointed.

Answer 2

当然不能选A，前后主语不一致啊，如果前后一致，可以

Answer 3

那你好得也把其他选项填写全吧，其次，根据后面的boss was说明这是一个过去式，那好得也应该用过去完成时态，也不能选A吧，其次A的选项现在完成进行时，ing不是加在have上面的吧