we are not sure whether we can persuade him out of smoking.这句话为什么是宾语从句呢?前面的we are not sure主系表不是完整了么?
问题描述:
we are not sure whether we can persuade him out of smoking.这句话为什么是宾语从句呢?前面的we are not sure主系表不是完整了么?
答
sure是及物动词