“There has been great changes in computers in the last few y

“There has been great changes in computers in the last few y There ___ great changes in computers in the last few years. the reform has brought about great changes in the last few y There have been great changes in computers(同义句） there have been great changes in computers什么意思 In the last few years,there _______ great changes in the cou in the past few years there have been great changes in my ci In the last few years,there _______ great changes in compute 23.In the last few years,great changes in The last few years has seen great changes in this country对吗 There( ) great changes in Shanghai in the past few years. There have been great changes in our hometown in the （p ）10y