weknowthattheexhibitionisarrangedtodayatfirst,butithasbeenputoffuntilnextweek.weknowthattheexhibitionis(这里可以用was吗?)arrangedtoday(定在今天,这样翻译可以吗?)atfirst,butithasbeen(如果前面
weknowthattheexhibitionisarrangedtodayatfirst,butithasbeenputoffuntilnextweek.
weknowthattheexhibitionis(这里可以用was吗?)arrangedtoday(定在今天,这样翻译可以吗?)atfirst,butithasbeen(如果前面用was,这里就用hadbeen吗?但是推迟是后发生的)putoffuntilnextweek.