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under, under, under the box
behind, behind, behind the box
front, front, in front of the box
︶
There is a tree in front of the house.
in the tree 在树上
on the tree 在树上
用on表示的是树上长的，
比如果实，叶子等。
用in则表示鸟或风筝等在树上
e.g.
There is a bird in the tree.
树上有一只鸟。
There are some pears on the tree.
树上有一些梨。
选择is 或are.
There ____ a dog under the desk.
There _____ some apples on the table.
There _____ some pupils in the classroom.
There _____ some milk in the bottle.
There _____ a pen and some books in the bag.
There _____ some students and a teacher in the classroom.
is
are
are
is
is
are
Listen and answer the questions
1.What’s behind the house?