（in above under with behind）
问题描述：
（in above under with behind）
There is house _______ the mountain.The boys are playing _____ the dog ______ the big tree.Some birds are flying ________ it.Mum is cooking _______ the house.
（填空）
答
behind;with;under;above;in.你很确定吗？是的，很确定。