A cat was seen________up a tall tree横线上填什么A. run up B. ran up C. to run up三个选项
问题描述：
A cat was seen________up a tall tree横线上填什么
A. run up B. ran up C. to run up三个选项
答
A cat was seen high up a tall tree.
一棵很高的地方有一只猫。
high在这里做副词：很高地，修饰up a tall tree这个介词短语。
high up a tall tree 整体做地点状语
答
lovely lovely leaves lovely(这个是形容词，表示可爱的、意思是唐老鸭可爱，是吗？是反义疑问句）
答
C感官动词see用作被动语态,要恢复动词不定式to
一只猫被看见爬上了高树
答
climbing 有人看见一只猫爬上了一棵高高的树 see sb doing 看见某人做某事，句子中是被动语态