—I can never forget the day ___ we spent together in the summer camp．

—Well, especially the day _______it suddenly began to rain in the middle of the night．

A．when; when

B．which; when

C．what; that

D．on which; when

获得初级导游人员资格（）年以上，业绩明显，考核、考试合格者晋升为中级导游员。

A．1

B．2

C．3

D．4