my set of keys____old,but your keys are new.A,am B.is C.are D.be,为什么选B

my set-up date. set up my profile 我的一串钥匙丢了?英语怎么写?My a set of key is lost.My a set of key lost. set sb's handI have set my hand and seal of Office this 10th day of august 2007这句话怎么翻译啊 set my hand and seal of Office set of the in the set of a set of a set of set of什么意思 set of byte This is a photo of the school that__________(set up)in my hometown a complex set of 具体 complex set a set of keys is on the sofa.(on the sofa部分提问）__a set of keys?my keys are on the desk.(on thedesk部分提问) set my heart at rest kind of set怎么翻译you are kind of set a set of是什么意思啊? set a record of造句 a set of译成英语