问题
When I was in hospital, my mother promised me that she would take me to Qingdao ________ I was well enough to travels, which ________ my recovery. [ ]
A: direct; contributed to
B: directly; contributed to
C: directly; refered to
D: direct; refered to
B: directly; contributed to
C: directly; refered to
D: direct; refered to
正确答案是：
