There is a big bus on the road.否定句怎么改
问题描述：
There is a big bus on the road.否定句怎么改
答
There isn't a big bus on the road
答
There isn't a bag bus on the road
答
咦？到底是复数还是单数？
答
There is not a big bus on the road.
答
There aren't any big buses on the road.
路上一辆大巴也没有.