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'.
One great defect of our civilisation (1)/ is that it does not know what (2)/ to do with it's knowledge. (3)/ No Error (4)
1
1
2
2
3
3
4
4