David singer,my friend's father,- raised and educated in New York,lived and lectured in Africa.
问题描述：
David singer,my friend's father,- raised and educated in New York,lived and lectured in Africa.
a who b if c while d though
就是纠结于CD之间 答案是选D得可是C为什么不可以呢 while不是也有转折的意思吗?
答
Though是‘尽管’的意思,表让步（退一步）的意思,而while表示‘但是）的意思,纯属转折.两者意思不一样,你要仔细体会啊可是while不是也有尽管的意思吗？