MCQ
He said, \'I have been working all day.\' (Change to Indirect Speech)
English
A He said that he has been working all day.
B He said that he had been working all day.
C He said that he had been working all that day.
D Both B and C are acceptable.
Explanation

Past perfect continuous (\'had been working\') is correct, and \'all day\' can become \'all that day\'.