Exclamatory Sentences are used to express joy, surprise, wonder, etc. The use of "Alas!", "Hurray!", "Oh!" is evident in Direct Speech. The reporting verb ['said' in the Direct Speech] in the Indirect Speech is changed into "Exclaimed with sorrow", "Exclaimed with joy", etc.
Exclamatory Sentence in Direct Speech is changed into assertive form when it is changed into Indirect Speech.
"That" is used in place of Inverted Commas [used in the Direct Speech] in the Indirect Speech.
The sentence in the Direct Speech is in Future Simple Tense. Therefore, the sentence in the Indirect Speech should be in Present Conditional Tense.
Future Simple (Subject + will/shall + V1 + object) should be converted into Present Conditional (Subject + would/should + V1 +object).
For example:
He said, "I will be in Kolkata on Friday." (Direct Speech)
He said that he would be in Kolkata on Friday. (Indirect Speech)
For example:
Barney said, "Good Heavens! I am ruined." (Direct Speech)
Barney exclaimed with sorrow that he was ruined. (Indirect Speech)
The minister said, "How foolish of me." (Direct Speech)
The minister confessed with regret that he was very foolish. (Indirect Speech)
The following things in the sentence should change when changed from Direct speech to Indirect Speech:
· 'I' changes to 'he'.
· 'Help me heaven' changes to 'called upon heaven'
Therefore, the correct answer is: The man called upon heaven to witness his resolve that he would never lie again.