Поставить следующие предложения в вопросительной и отрицательной форме: 1. They had a lecture on Physics yesterday. 2. There is a short-handed in the building of our Institute. 3. I must go to the Institute four times a week. 4. She will be a book - keeper in three years. 5. She works at a department store.

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