Soon they came to a farm house,and in front of which sat a small boy 改错
问题描述：
Soon they came to a farm house,and in front of which sat a small boy 改错
答
and去掉
答
这里是倒装，“当他们到了一处农舍，农舍前坐着一个小男孩。”本来句序是A small boy sat in front of the farmhouse(这里用which指代)。将表地点、
答
删除and（此为从句结构）