REWRITE USING 'OBVIOUSLY': It is clear that the cost of living will rise.
Obviously, the cost of living will rise.
REWRITE USING 'INCREDIBLY': It is difficult to believe that Adriana got the highest mark in the test.
Incredibly, Adriana got the highest mark in the test.
REWRITE USING 'PERSONALLY': What I think is that young people shouldn’t be allowed to drive until the age of 18.
Personally, I think young people shouldn't allowed to drive until the age of 18.