Поставить последующие предложения в вопросительной и отрицательной форме: 1.They had a

1had they a lecture on physics yesterday. They hadn't a lecture on physics yesterday. 2is there a short handed in the building of our institute. There isn't a short handed in the building of our institute. 3must I go to the institute four times a week. I mustn't go to the institute four times a week. 4will she be a book keeper in three years. She will not be a book keeper in three years. 5does she work at a department store. She doesn't work at a department store