I had decided to give it up ,but on second thoughts,I decided to try third time.
A. 不填;a
B. 不填;the
C. the;the
D. the; a
网友回答
(答案→)A. 不填;a
B. 不填;the
C. the;the
D. the; a
解析：本题考查冠词。On second thoughts 是习语，意思是：三思后，晚些时候做出决定。序数词的前面加上不定冠词，表示再一，又一。A third time 表示再一次，又一次。
【标签】冠词用法