Заполните пропуски соответствующей формой глагола to be. 1. A group of students … at work in our laboratory. 2. I … a student of economics several years ago. 3. In winter the weather …often cold in our country. 4. These compute...

Заполните пропуски соответствующей формой глагола to be. 1. A group of students … at work in our laboratory. 2. I … a student of economics several years ago. 3. In winter the weather …often cold in our country. 4. These computers … very reliable. 5. You … the best specialist in our department last year