there is a playground at our school为什么用at 不用in

单项选择：（ ）1.＿＿is the weather like today?---It's rainy.A.What B.how C.when D.why( )2.___can I go to the police station?And____way shall I go?A.what;which B.how;what C.how;which D.what;what( )3.where____you just now?i___on the playgroun Is there a window? There is a middle there is a cat there is a problem Is there a school Is there a house___? There is a Is there a. there is a There is a kitshen. There is a pair over is village a there there (.) There is a long r______ there. There( )(be)a football match,is there. there is a baby horse over there. there ,a there,is ,phone如何排列? where there is a life,there is a hope.