Over half a million people worldwide participate in book-crossing, 'releasing' books in a (9)_____ range of locations including cafés, airports, bus stations, telephone boxes and even underwa
Over half a million people worldwide participate in book-crossing, 'releasing' books in a (9)_____ range of locations including cafés, airports, bus stations, telephone boxes and even underwater in public fountains.
A. deep
B. long
C. high
D. wide