In the ministers black veil, how did the congregation view mr hooper before he begun wearing the veil?

Can someone explain this to me clearly plz

Which verb or verb phrase signals an inappropriate shift in mood. a) will you let b) should first change c) must attend d) will be served

To meet the needs of commuters in the industrial age, city planners implemented the use of phonographs. provided more horses and carriages. borrowed technology from railroads. constructed new telephone lines.