Look!There are many pears_the tree and there are many birds _it.(填in或on） 急
问题描述：
Look!There are many pears_the tree and there are many birds _it.(填in或on） 急
答
on,in
on the tree在树上..是指树上本来就有的东西,比如果实,花等..
举例：The apples are on the tree.
苹果在树上.
in the tree在树上..是指本身不属于树的东*在树里面了..比如人或动物爬到了树上..
举例：The cat is in the tree.
猫在树上.