在山上用in还是on野餐用on the hills 还是 in the hills

在山上用in还是on野餐用on the hills 还是 in the hills on hills还是in the hills 在丘陵上的英语翻译,是on the hills还是in the hills The flowers on the hills in spring are c___ Some rain water goes_____ the hills.(on,in,at.under) ______ _______ _____walking in the hills? I have fun in the hills.改为同义句 I ( ) ( ) ( ) ( ) in the hills The young men are going( )on the hills. Look at the children.They_____(plant) trees on the hills 在街上 用on the street 还是in the street in the newspaper 还是on in还是on the newspaper