I study very late every night to improve my Putonghua sometimes——_英语解答

I study very late every night to improve my Putonghua sometimes——2am
A.until.B.at.C.for.D.from.

人气：328 ℃　时间：2020-05-23 04:34:26

解答

A.根据句意：我每天晚上为了提高普通话学习到很晚,有时甚至到凌晨2点.until是直到的意思,只有选这个才符合逻辑.