1вставьте am(not) ? are (not) is (not) 1) i a student of mining 2)crop and animal farming the main branches of agriculture 3) the manager in the office 4)agriculture and manufacturing important in all economies 5)you a student. you a manager of an agricultural company 6)crop farming possible in the central regions of russia in early spring 7)i a student of medicine,i a student of the economics department fuel important for all industries 2 сделайте следующие предложения отрицательными и вопросительными 1-crop farming is very important for every economy 2-processing is important for all mineral resourcess