There're a lot of apples ____ the tree.a.on b.in

There're a lot of apples ____ the tree.a.on b.in
There're a lot of apples ____ the tree.
a.on b.in

There're a lot of apples ____ the tree.a.on b.in
绝对是ON~!我拿100分担保..不信你用百度输入There're a lot of apples on the tree绝对搜得到
改成in就不行了

on树上的果实用on,树上的动物用in

a. on
in 在树上
on 长在树上