Only when senior high school to show a great interest in poems.
A. did I enter; did I begin
B. did I enter; I began
C. I entered; I began
D. I entered; did I begin
网友回答
A. did I enter; did I begin
B. did I enter; I began
C. I entered; I began
(答案→)D. I entered; did I begin
解析：句意：就在当我进入高中的时候，我才开始显示出对诗的兴趣。show a great interest in sth对……的兴趣；only+从句放在句首时，主句应该用部分倒装，从句不到装，故选D。