In some trains of high comfort passengers can order dinner or supper directly to their compartments.
1) Can passengers order dinner directly to their compartments?
2) Passengers can order dinner or supper directly to their compartments, can't they?
3) Can passengers order dinner or supper directly to their compartments in all trains or in some trains of high comfort?
4) What can passengers order directly to their compartments?
5) Who can order dinner or supper directly to their compartments?