GRE Text Completion: ETS Official Practice 150-GRE OP150：填空 - I5ZPFT781WHGX035O

It was her view that the country's problems had been ____________ by foreign technocrats, so that to ask for such assistance again would be counterproductive. A. ameliorated B. ascertained C. diagnosed D. exacerbated E. overlooked F. worsened