In the following questions, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No error'
Hardly had I reached that (1)/ exhibition where I learnt (2)/ about the major robbery. (3)/ No Error(4)

Answer

2

Explanation

Hardly …. When … is correct form of connective. It is used to combine sentences denoting two simultaneous past actions. Hence, exhibition when I learnt…..should be used here