We are having a picnic near the lake.否定句,一般疑问句,肯定回答,否定回答.

We are having a picnic near the lake.否定句,- We aren't having a picnic near the lake.一般疑问句,- Are you having a picnic near the lake?肯定回答,- Yes,we are.否定回答.- No,we aren't.不明白的再问哟,请...