We are going to come back___at 7 o'clock._________对划线部分提问.what time是对具体时间提问，when是对大概时间提问。是不是应该用what time？
问题描述：
We are going to come back___at 7 o'clock._________对划线部分提问.
what time是对具体时间提问，when是对大概时间提问。是不是应该用what time？
答
When are you going to come back？
答
When are you going to come back？
答
home
答
When are you going to come back?
没有这种说法，When=what time
答
when are you going to come back
答
when are you going to come back？
答
是的。What time 问具体的钟点。
答
when are you going to come back?
what time 是就具体的时刻提问,when的用法要比它广泛,但是它也可以用来回答具体时刻的提问.没有冲突.
而且what time一般只用在问别人现在几点钟这种情况.
答
When are you going to come back?