closed,close; open,opened的区别 They thought he was a strange man,for he kept all his windows ______ all the year round. A closed B close You had better keep your mouth ______ and your eyes ______. A shut; open B shut; opened 为什么第一题选用动词ed,第二题却不用了呢?麻烦帮我翻译一下第二题.