古往今来,多少英雄豪杰、仁人志士、模范人物,将他们的聪明才智、赤胆忠心乃至鲜血生命奉献给国家。这段话告诉我们
— Did you meet ______ interesting at the party? — Not really.
I like this room. You ______ see the mountains from the window.
Which book is ______ to understand, this one or that one?
I phoned Sarah last night, ______ there was no answer.
I always go skiing with my friends ______ winter.