The last few years has seen great changes in this country对吗

The last few years has seen great changes in this country对吗 23.In the last few years,great changes in In the last 30years , our country has e__ great changes e开头的 In the last few years,there _______ great changes in the cou In the last few years,there _______ great changes in compute There ___ great changes in computers in the last few years. 英语改错great changes took place in the last few years Great changes have taken place in the last few years.在过去几年里不 “There has been great changes in computers in the last few y the reform has brought about great changes in the last few y There( ) great changes in Shanghai in the past few years. Great changes ---- in my hometown in the past few years.