2.Jake wasn't doing his homework during the lesson.
Was Jake doing his homework during the lesson?
3.The students weren't eating chips and salad.
Were the students eating chips and salad?
4.You weren't playing well in the match.
Were you playing well in the match?
5.The teacher wasn't explaining a difficult grammar point.
Was the teacher explaining a difficult grammar point?
6.You weren't having lunch when Sammy arrived.
Were you having lunch when Sammy arrived?