Great changes ( ) in the city since 1979

Great changes ( ) in the city since 1979 Great changes _______ since he left the city. Great changes ______ in Shanghai since the beginning of the Great changes _________(happen ) in our city in the past. Great changes ________ in China since the People’s Republic "Great changes have taken place in China since the introduct There have been great changes in our city since he became th Great changes took place in our city since 1980.时态 翻译 There have been great changes in our city since 1978.have be 英语选择Great changes ____ in our city since 1980A.took place B. there _____（be）great changes in our city since 2000 great changes----in china since 1919