They are surprised or astonished. Living and dead. Bigg takes it to mean that all men who did not hear the gospel message in this life will hear it in the next before the final judgment. In view of the coming of Christ. No verb here in the Greek.
Complaint spoils hospitality.
Inns were rare and very poor. Condition of first class, assumed as a fact. No predicate in this conclusion of the condition. It can be construed here as nominative or as accusative. The verb has to be supplied.