Question

As soon as we received your message, we heaved a sigh of relief.

Answer 1

Explanation:

No sooner did we receive your message than we heaved a sigh of relief

Hardly did we receive your message, when we heaved a sigh of relief

Hope it Helps

Also A Tip : Use Had with hardly for ex "hardly had"... only when there is a "had" in the question.

Have a good day.

Answer 2

Answer:

'No sooner..than' is used to suggest that one action takes place immediately after another action. When 'no sooner..than' is used at the beginning of the sentences then auxiliary verb goes before the subject. No sooner always introduces the event that occurred first.

The given sentence can be transformed using no sooner..than by beginning the sentence with 'no sooner'' followed by 'than'.

Option C is the correct answer as the auxiliary verb 'did' is before the subject 'we'. 'Did' should be used as the given sentence is in the past tense. Options A, B, and D are grammatically wrong.