After Tan had brought the umbrella to his father, he went to Thien Phuc’s house.
A. Before Tan went to Thien Phuc’s house, he had brought the umbrella to his father.
B. He went to Thien Phuc’s house after bringing the umbrella to his father.
C. Tan had brought the umbrella to his father before going to Thien Phuc’s house.
D. A & B & C are correct.