Помогите пожалуйста сделать предложения отрицательными и вопросительными . 1)At this time yesterday I was sitting at the thearte 2) Yesterday they were writing a letter to his friend 3)He was playing computer games 4)We were writing a composition the whole day yesterday спасибо заранее

1. At this time yesterday i wasnt sitting at the treatre 
2. Yesterday they werent writing a letter to his friend
3. He wasnt playing in computer games
4. We werent writing  a composition the whole day yeatsrday
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1. At this time you were sitting at the theatre yesterday?
2. Were they writing a letter to his friend yesterday?
3.  Was he playing in computer games?
4. Were we writing a composition the whole day?