Do they feel happy on children's day?肯定回答是A.yes,they do B.yes they are 是哪个?
问题描述：
Do they feel happy on children's day?肯定回答是A.yes,they do B.yes they are 是哪个?
答
A.yes,they do很有把握吗？为什么 ？句子里没有出现be动词，当然不能选are，Do提问就用do回答我确定。