托福写作常见语法错误：中国经济改革
来源 :中华考试网 2016-10-20
中找出下列句子的一处语法错误：
From 1978 until 2013, unprecedented growth occurred within the economy as it has been increased by 9.5% per year.
适用考题：
Government should focus its budgets more on environmental protection than on economic development. (2013.9.8)
答案：
From 1978 until 2013, unprecedented growth occurred within the economy as it increased by 9.5% per year.