帮个忙,将这个句子变成‘宾语从句的复合句’,Does he still live in that city I don't know.急

问题描述:

帮个忙,将这个句子变成‘宾语从句的复合句’,Does he still live in that city I don't know.急

I don't know whether he still live in that city。

I don't know whether he still lives in that city.