答案是is still being done 或者has not yet been done.was not done 或者 has not done都是错误的答案.因为needs告诉我们,这个done是与“现在”有关,不能是was not done
.还有这个done是被动语态,不能是主动语态-----has not done.
答案是is still being done 或者has not yet been done.was not done 或者 has not done都是错误的答案.因为needs告诉我们,这个done是与“现在”有关,不能是was not done
.还有这个done是被动语态,不能是主动语态-----has not done.