The journey around the world took the old sailor nine months, ________ the sailing time was 226 days．
A.of which
B.during which
C.from which
D.for which
网友回答
A解析做此类题先找先行词，然后把先行词代入定语从句。本题先行词是nine months，因此，本句可以改成两个单句：The journey around the world took the old sailor nine months．The sailing time of nine months was 226 days。