9. I found the last sum in this exercise more difficult than the other sums .( superlative ) 10. Mr. Biswas is the most respected member on the staff . ( superlative )
11. The new school playground is smaller than the earlier one . ( change using not with positive degree to show comparison )
12. The new principal is strict . The one before him was also strict . ( joining into a single sentence , using positive degree )
13. The patient looks weak today . she did not look so weak yesterday . ( join into a single sentence , using comparative degree)
14. It rained heavily in August . It did not rain so heavily in July . ( join into a single sentence , using comparative degree )
15. Children are very observant. Most parents don't realise this . ( join into a single sentence , using comparative degree