问题补充:
Dela had made up his mind to give it up ,but on second thought ,he determined to try third time.
A. /; a
B. / ; /
C. a ; a
D. the ; a
答案:
(答案→)A. /; a
B. / ; /
C. a ; a
D. the ; a
解析:本题第一空考察的是固定搭配on second thoughts经再三考虑之后;第二空考察的是序数词的特殊用法,在序数词前面加上不定冠词a/an表示再一,又一;句义:Delaware下定决心要放弃,但是仔细考虑以后,他决定再试一次。故A正确。