In the following question, out of the four alternatives, select the alternative which is the best substitute of the words/sentence. Complete with regard to every detail
In the following question, 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'.
What are (1)/ you doing (2)/ by here? (3)/No Error (4)