无谓语动词!整句是what most impressed my friends and I as we toured tne mansion was a landscape paintingso vividly realized that we at frist thought it was a window looking out onto a sunit meadow.what most impressed my friends and I as we toured tne mansion这些是what引导的主语was a landscape paintingso vividly这是修饰painting的状语 realized that we at frist thought it was a window looking out onto a sunit meadow.这句话不懂，怎么又多了realized及后面。这样就是多了一个谓语动词。把 realized that we at frist thought it was a window looking out onto a sunit meadow.这句话从你的那一大句话中分开，然后在写realized的同义句。这是一道sat2013一月的题 答案画线的是my friends and I错不知道是为什么realized that we at frist thought it was a window looking out onto a sunit meadow.这句话我真不懂。 你说是my friends and I错的话那就改i 为me 。impressed后要加宾语 i 的宾格为me 。我也是猜的，毕竟没看出来！