They're all correct.
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.
NewguestHi
1. You have bought yourself a new mattress, why don't you sleep on it? I'd rather use this than Continuous.
2. You have bought youreslf a new mattress, why are you not sleeping on it? It sounds oddly.
3. Why are you not writing what the teacher is saying? It's OK.
OR Why don't you write wha