The were walking at seven o`clock yesterday.对were walking提问时,这道题怎么写——they—at the moment?一个-是一空

问题描述:

The were walking at seven o`clock yesterday.
对were walking提问时,这道题怎么写
——they—at the moment?
一个-是一空

what they were doing at the moment?
一空一词的话就是what they did at the moment?
他们昨天此时在做什么

What were they doing at the moment?