神马品牌网星光之胜100收割机价格:高中英语
来源：百度文库 编辑：神马品牌网 时间：2024/05/03 06:04:50
He paid the boy 10 for washing ten windows ,most of ____hadn't been cleaned for at least a year
which 定语从句中可代先行词也可代一个句子
which
them-----代指前文的窗户,most of them-----其中大多数
most of them hadn't been cleaned for at least a year 其中大多数(的窗户)至少一年没被清洁过.