Ⅰ.单项选择（30分）
( ) 1.Jenny goes to school on foot．It takes her about half ________ hour to get there．
A．an B．a C．the
( )2.Please ________ these things to your brother. He is at school.
A.bring B.look C.take
( )3.—Look! Kate is so beautiful ________ that green skirt.
—Yes,she bought the skirt ________ a reasonable price.
A.on; in B.in; at C.at; at
