1.ответьте на вопросы ,обращая внимание на время глагола-сказуемых? 1)do you study biology? 2)are you studying biology? 3)do you attend lectures in microbiology 4)are you attending the lecture in microbiology? 5)do you perform laboratory works? 6)are you performing a laboratory work? 2. обратите внимание на выделенные в предложении слова и употребите необходимо в данном случае время? 1.you (to determine) the number of this patient's heart beats? 2.she (not to serve) in the hospital. 3.the scientists (to estimate) the amouit of blood pumped by the heart daily.
2) No, I am not. I am reeding a book.