题目内容：

work on it had begun before my sister *left*(离开)和I am one of the few people *left*（留下）里面的LEFT都是怎样解释和翻译,

优质解答

请阅：（1）work 【主语】on it【定语,修饰主语work】 had begun【谓语】 before【其后为时间状语从句】 my sister 【从句主语】left 【从句谓语】.(这里的left是leave“离开”的过去式,是动词,意为“离开”.)（2）I...