Преобразуйте вопросительные предложения сначала а) в утвердительные, а затем б) в отрицательные.
When did stundents come yesterday? a) Students came in the evening yesterday. б) Students didn`t come in the evening yesterday.
1)Were you at the Institute last week?__________________
2) What lectures did he deliver?____________________
3) Does William often solve such king of problems?______
4) Do you want to study economics?_______________
5) Where did your friend live?___________________