which book of my brother's 这个句子为什么是问句啊

问题描述:

which book of my brother's 这个句子为什么是问句啊

是问句,没错.要根据上下文来确定省略的句子成份.就按问题,可以把问题补完整为:which book of my brother's will I give you 或which book of my brother's did you want?