Question

-Was his father very strict with him when he was

-Was his father very strict with him when he was at school?
-Yes.He had never praised him___ he became one of the top students in his class.
A、after
B、unless
C、until
D、when

答案选C。 但为什么不选B呢？

Answer 1

神啊，答案是C 啊。"never"里暗含着not ，本题意欲考察对 not ...until 句型的掌握 。整个对话的汉语意思大概是：-----他在学校上学的时候他爸爸对他要求严吗？-------嗯，直到他成为了年级里的尖子，他爸爸才表扬了他（暗含意思就是之前从未夸过他）。请采纳……
请采纳。

Answer 2

not until是固定搭配 。直到……才。B的话原句应该是he will praise him unless he became ^...

追问

原句应该是he will not praise him unless he…
吧？

追答

不对。