I lost a set of keys.然后是用 Is this yours?还是Are these yours?

I lost two ____(set)of keys I lost a set of keys.But last i found( ).填什么 i lost a set of keys ,i can't find them 还是it. I lost a set of keys.然后是用 Is this yours?还是Are these yours? you look worried,Henry.Yes,lost a set of keys. I have a set of keys 根据a set of keys 提问? Help!I lost a set of keys in the calss-room.please call me at 451-3752.的翻译 我丢了一串我的钥匙,用英语怎么说?I lost my a set of keys,这样说对不对？ Hello everyone,I have found a set of keys at 地点If you lost your keys,please contact John by calling 3658429. I have a set of keys.(改为一般疑问句） I lost a s_______of keys. I have two __ .A.set of keys B.set of key C.sets of keys D.sets of 连词成句（found,the,and,of,keys,case,is,in,a,lost,set） keys,library,lost,set,Jack,school,of,in,the,a【排顺序】 I lost a set ___ keys on my way to school中间填什么 I lost a set——keys 打横线的是要写的 a ,found,set,I,of,keys(连词成句）lost,my,case,is,ID,found,card,the,in，and（连词成句） 用所给单词的适当形式填空.I ___(lost)a set of keys.2.___(be动词)your books in your bag.