S₁ : We who live in the present day world are proud to call ourselves civilised S₆ : in fact science has added to our worries.
P : but let us search our hearts and ask ourselves, ‘Has science solved our problem?’
Q : is it because we live and dress better than our forefathers?
R : frankly speaking, the answer is ‘No’. S : of course, we have the advantages of the inventions of science which our ancestors had never know
The correct sequence should
