20.in the past 40years china ______ great advances in social

20.in the past 40years china ______ great advances in social Great changes( )place in China in the past 20 years. there ___ ___ great ___ in China in the past few years 单项选择：Great changes ____ in the past ten years in China . Great changes________in the past in China. In the pass 30 years china ____great advances in the cociali There( ) great changes in Shanghai in the past few years. In the past three years there great changes in Beijing. Great changes ---- in my hometown in the past few years. Great changes _____ in Hainan in the past three years. housing condition changes in the past 30 years in china In the past few years there great cha