Question: 8. low bridge! the double decker became a single deck!
Answer: --> 8. Low bridge! The double decker became a single deck!

Question: and your words will also work to the others’ salvation.”
Answer: --> And your words will also work to the others’ salvation.”

Question: the experience has built up your strength and ability to overcome whatever obstacles you may meet.
Answer:
--> The experience has built up your strength and ability to overcome whatever obstacles you may meet.