语法填空On average,10% of the men and women followed were found to have lost (lose)some cognitive horsepower in the study's 5-year span.此处to have lost是补语吗,为什么不能填having lost?
The questioner assumes and implies(though rarely says) that these bad parents are people poorer and less good than he.老师好,though这里是直接连接两个动词了吗?这样规范吗?还是说省略主语?