Take a closer look at the section called "Living and Working in the Snow." How did the workers live and work through the winter while building the Summit Tunnel?
by digging snow tunnels from their shelters to the tunnel
by taking frequent trips into nearby towns
by building sturdy cabins
by relying on lamps to light the tunnels where they lived and worked

europe churches founded monasteries and universities that studied philosophy and nature.

hope this : )

b. after i get up in the morning,

explanation:

after is a subordinating conjunction that introduces a time clause. time clauses are dependent clauses used to indicate when something happened.

the clause "after i get up in the morning" tells when the action in the main clause (drinking a cup of coffee) happens:

"after i get up in the morning, i drink a cup of coffee." it is the most logical choice of all.

i guess so you did not explain the answer clearly so i can't