They have been living in the city since they were born.(改为一般疑问句)三个空living in the city since they were born?

问题描述:

They have been living in the city since they were born.(改为一般疑问句)
三个空living in the city since they were born?

Have they Been living in the city since they were born?

have they been

have they been living in the city since they were born?