1) Did they speak to John three days ago?
They didn't speak to John three days ago.
2) Did they walk in the park last Sunday?
They didn't walk in the park last Sunday.
3) Did he drive very carefully?
He didn't drive very carefully.
4) Did we hear a terible noise?
We didn't hear a terrible noise.
5) Did he watch a tennis game on television?
He didn't watch a tennis game on television.