There----------three birds-----------the tree.谁会填空?

There are three birds in the tree

are in
望采纳~

are, in
意：树上有三只鸟。
在树上 on the tree-长在树上的，in the tree-不长在树的上
There're some apples on the tree.
那棵树上有几个苹果。
There's a bird in the tree.
树上有只鸟。

lived in

are
in