There are four birds the tree. And there’re many oranges it too.A. in inB. in onC. on

问题补充：

There are four birds the tree. And there’re many oranges it, too.

A. in, in

B. in, on

C. on, in

D. on, on

答案：

A. in, in

(答案→)B. in, on

C. on, in

D. on, on

解析：有些东西在树上用in the tree

而水果长在树上用on the tree

故选B