问题描述：
1.The car damaged in the accident can't be used unless ___ completely .
repaired 我知道这里表示被动,所以用过去分词.而且我觉得unless后面省略了主语和谓语,这里是否 = it was repaired 还是 it is repaired .还是我的理解有误?
2.This is one of the means ___ the electricity energy is conducted from one place to another .正解是 by which .能否帮我分析下这里为什么用 by which 而不是 that \ which .
3.“ Put that money somewhere safe ___ it gets stolen ." Mom reminded me .正解是 before .句意该如何理解?“在被偷之前” 觉得不合适 但却不知道怎么理解好.
感激不尽.
repaired 我知道这里表示被动,所以用过去分词.而且我觉得unless后面省略了主语和谓语,这里是否 = it was repaired 还是 it is repaired .还是我的理解有误?
2.This is one of the means ___ the electricity energy is conducted from one place to another .正解是 by which .能否帮我分析下这里为什么用 by which 而不是 that \ which .
3.“ Put that money somewhere safe ___ it gets stolen ." Mom reminded me .正解是 before .句意该如何理解?“在被偷之前” 觉得不合适 但却不知道怎么理解好.
感激不尽.
问题解答：
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