IV. Поставьте следующие предложения в отрицательную и вопросительную форму.
1. He is attending the lecture of economics now.
2. Planets are going round the sun.
3. We were working on a new project all the day yesterday.
4. Sam Brown was working with clients, when the boss came to the office.
5. We shall be still working here in ten years’ time.
6. At ten o’clock tomorrow he will be working at his report.

1.is he attending  the lecture of economics now?he isn*t   attending the lecture of economics now2.are planets going round the sun ? planets aren*t going round the sun 3.were we working on a new project all the day yesterday ?we weren*t  working on a new project all the day yesterday 4.was sam brown working with clients ,when the boss came to the office ? sam wasn*t  working with clients ,when the boss came to the office5.shall we still  working here in ten years time? we shalln*t working here in ten years time 6.will he working at this report  at 10 o*clock tomorrow?he won*t working at this report at 10 o*clock tomorrow