--Was his father very strict with him when he was at school?--Yes.He had never praised him ____..
--Was his father very strict with him when he was at school?--Yes.He had never praised him ____..
--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 grade.(Unit7-5)
A.after?B.unless?C.until?D.when
为什么选C不选B?其它选项错在哪里呢?请分析一下句型或语法.
--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 grade.(Unit7-5)
A.after?B.unless?C.until?D.when
为什么选C不选B?其它选项错在哪里呢?请分析一下句型或语法.
英语人气：530 ℃时间：2019-08-26 06:55:13
优质解答
主句中用had never done 表示“直到...才”的意思,用until表示一段时间的延续.如果用unless,表示只有在某种情况下才会发生的事情,主句用过去式就可以了.
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