Question

Transform sentences with 'as soon as' to sentences with 'no sooner than'.
As soon as they met, they became best friends.

• A. No sooner did they meet then they became best friends.
• B. No sooner did they meet than they became best friends.
• C. No sooner does they meet than they became best friends.
• D. No sooner do they meet than they became best friends.

Answer 1

Answer: (B)

No sooner did they meet than they became best friends.

'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'.

Thus, option B is the correct answer as 'auxiliary verb - did' is before the subject 'they'. 'Did' should be used as the given sentence is in the past tense. 'Then' is not the correct word to be used while using 'no sooner.. than' hence option A is incorrect. Options C and D are grammatically wrong.