would rather would rather do sth than do sth宁愿做前者而不做后者
be informed it is + 形容词+that 结构中用虚拟形式即 should +动词原形其中should 可省略
where定语从句先行词在从句中做地点状语
understood过去分词做宾补
write.request这个词用虚拟形式should +动词原形其中should 可省略
at which定语从句,这个介词加关系代词相当于at the age
whose wallet定语从句,先行词与从句主语是从属关系所以这样用.
employee雇员
live prefer to do sth than do sth 宁愿做前者而不做后者