I am from biology background. My grammar is also weak. I gave knewton diagnostic. Seeing what I got in that, I could not bring myself to give gmatprep although I downloaded it. How people get 700+ in diagnostics? Please advice some plan to start with. I already have MGMAT books, Powerscore CR bible, kaplan workbooks (both verbal and quant). Please recommend. I have to get 700+ somehow. I have left my job to study for GMAT. I can give as many hours as you suggest.
thanks