WAEC - English Language (2000 - No. 54)
.......home, his dead uncle's burial had already taken place.
Getting
As he gets
On getting
When he got
Giải thích
"When he got home, his dead uncle's burial had already taken place."
The burial had already taken place by the time he arrived. It doesn't imply that the burial happened as he arrived, but rather that the burial was completed before his arrival. So, "when he got home" is the most suitable choice.