Question

10．---Many peoplewon't realize that it is important to get along well with others until friends go away from them．（直到朋友离开他们才意识到与他人好好相处很重要） （until）
---Yes．So we must learn to communicate with others．

Answer 1

分析 许多人直到朋友离开他们才意识到与他人好好相处很重要．
---是的，所以我们必须学会和他人沟通．

解答 答案：won't realize that it is important to get along well with others until friends go away from them．
结合句意表达的是直到…才，结合所给的until用not…until…，遵循主将从现的规则，主句用一般将来时will+动词原形，realize意识，后加宾语从句，that作为引导词，做某事是怎样的用it's+adj+to do sth，从句表达的是客观事实用一般现在时，important重要的，get along well with others 与他人好好相处，until从句用一般现在时，主语friends复数，离开go away fron them，故答案是won't realize that it is important to get along well with others until friends go away from them．

点评 not…until直到…才 
表达的意思是"直至某时才做某事"．动词为延续性或非延续性都可以．
否定句：
She didn"t arrive until 6 o"clock．
她直到6点才到．
Don"t get off the bus until it has stopped．
公共汽车停稳后再下车．