l was in the room at seven o clock(否定句,一般疑问句及两种回答)

问题描述:

l was in the room at seven o clock(否定句,一般疑问句及两种回答)

I wasn't in the room at seven o'clock.
Were you in the room at seven o'clock?
Yes,I was./ No,I wasn't.
不明白的再问哟,请及时采纳,多谢!