32 jack descried his father,who _____a brave boy many years

32 jack descried his father,who _____a brave boy many years ago,as a strong-wiled man
A.would be B.would have been
C.must be D.must have been
为什么

从 as 引导的那句可以看出 jack 是从他爸爸现在 strong-wiled 的形象做出一种肯定的推测：他爸爸年轻时一定是一个勇敢的小男孩.
（strong-wiled 我也不知道这个怎么翻译,大概就是很强壮、狂野的意思吧.）
所以就是must了,表示过去对现在的影响 就是 have been 了,
因此选 D 了
不知道你可以懂我的意思不、、、\(^o^)/~