In the following question, some art 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'. Being a well know scientist, (1)/ he was invited to deliver (2)/ a lecture on artificial intelligence. (3)/ No error (4)

Answer

1

Explanation

Here, Present Perfect - Has anybody is the right usage.
Well - known (Adjective) widely or generally known or recognised.