Поставьте следующие предложения в вопросительную и отрицательную формы:

1. He has supper at 7 o’clock. 2. They have a rest on Sundays. 3. We have dinner in the Institute dinning hall.

? has he supper at 7 o'clock- he hasn't supper at 7 o'clock? have they a rest on sundays-they haven't a rest on sundays?have we dinner in the institute dinning hall- we haven't dinner in the institute dinning hall