Question

i)Ravi's father praised him when he got the first prize in the debate.(Use:'criticise')
ii)He has a different opinion from others on this issue.(Use:'differently)

Answer 1

1)ravi' s father criticesed him when he didn't got the first prize in the debate
2)He was differently from others on this issue

I hope it helps you:)

Answer 2

1. Ravi's father did not criticise him when he won the first prize in the debate.
2. His opinion on this issue was put up differently.

NOT SURE ABOUT THE SECOND ONE...