The pair of glasses ___ not for Lucy.用单数还是复数形式?为什么?象“裤子”这类的呢?

_____(be)the pair of glasses yours this pair of glasses belongs to one of the (牙医) the pair of glasses on the desk (be)mine There are three ______ (pair) of glasses on the table a pair of glasses复数 The boy with a pair of glasses is Peter.对with a pair of glasses 部分提问 the teacher with a pair of glasses teachers us English.划线with a pair of glasses.划线提问 the pair of glassesThe glasses are not for Lucy. 为什么要用复数 a pair of glasses 呢 The man is wearing a pair of glasses .He is Bob(保持原意)The man( )a pair of glasses is Bob. the girl in a blue skirt with a pair of glasses 和the girl in a blue skirt wears a pair of glasses 两句话都对么 a pair of broken glasses ——on the deska pair of broken glasses ——on the deskA.is laying B.is lying不能搞明白, whom does this pair of glasses belong to and whose are the glasses on the table?请问为什么用whom 是a pair of glass 还是a pair of glasses paice,what,of,is,the,this,pair,of,glasses?连词成句 -----_____ this pair of glasses yours?-----No.My glasses _____ on the desk.-----_____ this pair of glasses yours?-----No.My glasses _____ on the desk.A.Is;is B.Are;is C.Is;are D.Are;are This pair of glasses _____ (look) nice. a pair of glasses的音标 a pair of glasses的单、复数