Заполнить пропуски подходящей формой глагола to be. сделать предложения вопросительными и отрицательными: 1. my mother … an economist, and my father … a food technologist. my friend’s parents … technologists, too. 2. where … you from? – i … from belarus. – and where … your friends from? – they … from russia. 3. … your friend at the university at the moment? – no, he … not at the university, he … at home. 4.what … the weather like today? – it … cloudy, the sky … grey. i think it will rain today. 5. our students … fond of chemistry.

Если I - am
если you , they , we - are
если he she it - is
my mother is , my father is , my friends are , where are you 

1. My mother is an economist, and my father is a food technologist. My friend’s parents are technologists, too. 2. Where are you from? – I am from Belarus. – And where are your friends from? – They are from Russia. 3. Is your friend at the University at the moment? – No, he is not at the University, he is at home. 4.What is the weather like today? – It is cloudy, the sky is grey. I think it will rain today. 5. Our students are fond of chemistry.