Marry had made up her mind to give it up but on second thought she determined to have t

问题补充：

Marry had made up her mind to give it up, but on second thought she determined to have third try.

A. / ; /

B. a; a

C. the; a

D. / ; a

答案：

A. / ; /

B. a; a

C. the; a

(答案→)D. / ; a

解析：

试题分析:考查冠词用法。固定短语on second thought或on second thoughts “转念一想”；序数词强调“再一，又一”时前面用不定冠词，故D选项正确。句意：玛丽下决心放弃了，但是转念一想她决心再试一次。