A. Tiffany said that she had gone to the GYM the next day.
B. Tiffany said that she went to the GYM tomorrow.
C. Tiffany said that she would go to the GYM tomorrow.
D. Tiffany said that she would go to the GYM the next day.
Feedback We change the Future Simple to the Conditional in Reported Speech: will - would. Also we change time expressions: tomorrow - the next day