Question

no sooner did he see the snake when he shouted spot the error.​

Answer 1

Here is the correct answer:

No sooner did he see the snake than he shouted.

Explanation

No sooner….than…is an idiomatic expression which means something happens immediately after something else. We have to use this expression together. It means whenever we use ‘no sooner’, we will always have to use ‘than’ with it.