Great changes _____ in Hainan in the past three years.

Great changes _____ in Hainan in the past three years. In the past three years there great changes in Beijing. great changes----in our city in the past three years 1took p there _____ great changes in Shenzhen in the past ten years. __has happend is that in the past three years great changes There( ) great changes in Shanghai in the past few years. Great changes( )place in China in the past 20 years. Great changes ---- in my hometown in the past few years. Great changes ______in Guangzhou in the past five years. great changes ___in our hometown in the past ten years In the past three years In the past years,there （ ）great changes in my hometown 填 ha