In the past few years, sea ice ____ in the Arctic as a resul

In the past decades,sea ice ______ in the Arctic as a result Over the past decades,sea ice ___ in the Arctic as a result ）Over the past decades,sea ice in the Arctic as a result of Over the past decades,sea ice ________ in the arctic as a re in the past few years He ____ very hard in the past few years.(study) In the past few years there shanghai _______ (change) a lot in the past few years the past few years great___great changes in modern science a in the past few years中的few是什么意思 in the past few in the past few years 过去完成时 in the last few years 现在完成时 in t