Will we need to show our passports?
问题描述:
Will we need to show our passports?
What do we need to take for the picnic?两个都是need to do 为什么一个加do做助动词,一个不要
答
Will we need to show our passports?这句话是将来时的一般疑问句,助动词是will
What do we need to take for the picnic?这句话是现在时,助动词是do