看图用下列介词填空。
on under in behind in front of
（1）The snake is ______the rock.
（2） Mocky is ______the tree.
（3）The frog is _______the water.
（4）The bird is ________on the rock.
（5）The squirrel is_________ the tree.
看图用下列介词填空。
on under in behind in front of
（1）The snake is ______the rock.
（2） Mocky is ______the tree.
（3）The frog is _______the water.
（4）The bird is ________on the rock.
（5）The squirrel is_________ the tree.
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