the man under the tree is Mr Li对under the tree提问,为什么用which,不用who,where

Under the tree i__ a man. () man under the tree is an american Who's the boy?The tall man under the tree. The man who is under the tree is my father. The man under the tree maybe be Tom The man under the tree is his teacher.划线部分提问,划线部分：under the tree Under no circumstances fall in love with the man there's a man under the tree,改为复数句 There is a man _(stang) under the tree tree,man,is,under,that,who,the连成一个疑问句 Is there a old man under the tree?改成复数 Under the tree i__ a man.根据首字母填词. there was a man that sat under the flat under the under the under the under the under the