1. 如果他们只有一个电话号码,也就是几个人共用一个电话的情况,用
What is their phone number? 就可以了
Their phone number is 1234567.
如果都有自己的号码,该用
What are their phone numbers?
Their phone numbers are 1234456 and 234546.
A's phone number is 134566, and B's phone number is 235626.
追问答得真好,真心感谢了!