He said 'I must go at once'. Change into indirect speech.
AHe said that he had to go at once
BHe said that he would go at once
CHe said that he must have gone at once
DAll of the above
AHe said that he had to go at once
BHe said that he would go at once
CHe said that he must have gone at once
DAll of the above
Related Questions:
He said that the horse had died in the night. Change into direct speech.
i. He said, "The horse would die in the night".
ii. He said, "The horse died in the night".
iii. He said, "The horse had died in the night".
iv. None of these