mum and dad were at work(否定句,一般疑问句及两种回答)

问题描述:

mum and dad were at work(否定句,一般疑问句及两种回答)

否定句:Mum and dad weren't at work.
一般疑问句:Were mum and dad at work?
肯定回答:Yes,they were.
否定回答:No,they weren't.