He had decided to give it up, but on second thoughts he decided to try third tim

He had decided to give it up, but on _____second thoughts he decided to try_______third time.

A. the;a　 B.不填;不填　 C.a;a　 D.不填;a

试题答案

D

second thoughts是习语、意为“在慎重考虑以后”。