What three lines in these excerpts show the painful and filthy conditions faced by soldiers in the trenches during world war i

Can someone explain this to me clearly plz

In twelve years a slave, when the passengers on the ship learn robert has smallpox, what is their reaction? “panic-stricken” “indifferent” “relieved” “oppressed”

Some keep the sabbath in surplice - i just wear my wings - and instead of tolling the bell, for church, - our little sexton - sings