The idea may have its roots in the 18th century Grand tour once (3) ___ by the young, rich and noble, but it is the middle classes who have turned it (4) ___ something that 200,000 British yo
The idea may have its roots in the 18th century Grand tour once (3) ___ by the young, rich and noble, but it is the middle classes who have turned it (4) ___ something that 200,000 British youngsters do every year.
A. up
B. out
C. over
D. into