193.Their shop is selling old-fashioned clothes _____ a discount, so many peopl,especially some middle-aged women are crazy _____ shopping.
A. for;on
B. at;about
C. on;for
D. by;in
194.The journey around the world took the old sailor nine months,_____ the sailing tiem was 226 days.
A. of which
B. during which
C. from which
D. for which