Сделайте предложения вопросительными и отрицательными
1.We were cooking when you called.
2.Peter had written five letters by the time you came.
3.He is going home now.
4.Ann will be working at 3 o,clock.
5.He called me yesterday

We weren't cooking when you called,Were we cooking when you called,?Peter hadn't ..Had Peter written ...?He isn't ...Is he going ...?Ann will not be ...Will Ann be...?He didn't Did he called..... ?