More than 15 years-------since Diana was killed in the car crash.A passed B have passed Chad passed D were passed为什么要选则C 而不是B呢?PS:我说错了 答案上市选择B 我选的是C
问题描述：
More than 15 years-------since Diana was killed in the car crash.
A passed B have passed Chad passed D were passed
为什么要选则C 而不是B呢?
PS:我说错了 答案上市选择B 我选的是C
答
因为后面是was killed ，过去时间，那么就是过去的过去，要用c
答
因为是现在完成时,所以用have
从Diana死亡到现在,已经超过15年了