题目

已知A种品牌的文具比B种品牌的文具单价少1元，小明买了2个A种品牌的文具和3个B种品牌的文具，一共花了28元，那么A种品牌的文具单价是________元． 答案：5---- Have you ever seen a dictionary ____________ our school library? ---- Yes, it is over there and Mary is using it.A．belonging toB．belonged to C．being belonged toD．belong to