tried phoning her office, but I couldn’t .
A. get along
B. get on
C. get to
D. get through
网友回答
A. get along
B. get on
C. get to
(答案→)D. get through
解析：考查词组的意义。前句意思是“我试着给他的办公室打电话”，根据后面的转折词语but告诉我们，这个电话没有“打通”。get through表示“打通”电话，与某人通电话则是get through to，其它短语无此意。