one of the pair of metal ba

this pair of glasses belongs to one of the (牙医) one pair of trousers___not enough the pencil case is made of metal metal划线提问 the pair of glasses ______is one of good properties of this metal. Alchemists made useless efforts to change one kind of metal Others will never be the envy of one pair of lovers This pair of shoes ________ one of the _________ very well. Combine each pair of sentences into one the pair of shoes和a pair of sh pair of the pencil-case iamade of metal.(metal)为划线部分.__ si the penci