1 . is unfortunate
he is unfortunatewho cannot bear misfortune ., 不能承受不幸的就是不幸.
2 . were unfortunate
The events of the weekend were unfortunate, but made no difference to the final result ., 周末的事情是不幸的 , 但不會對最后的結果造成什么不同.
1 . misfortune was
In a sense , Lehman ' s misfortune wasnot to have hit trouble earlier ., 在一定意義上 , 雷曼的不幸是沒有將難題更早的提出來.
2 . misfortune is
misfortune isa good teacher in life ., 不幸是生活最好的老師.