I found a set of______(key)横线上应该填什么呀?

补全单词I found a set of k____. )I found a set my heart racing boy I lost a set of keys.But last i found( ).填什么 I found a set of______(key)横线上应该填什么呀? i found a set of keys and an english book in thelibrary ,who什么them? I found a set of（ ）选择 A.key B.keys C.tI found a set of（ ）选择A.key B.keys C.two keys D.a key a ,found,set,I,of,keys(连词成句）lost,my,case,is,ID,found,card,the,in，and（连词成句） I found a way While I ___(walk)past the shop I suddenly thought of____(buy) a book. i'm kind of____(health) because i of ten have a cold. Do you found your a set of key? the United States system of government is based on a set of____ and____ ,designed to prevent one person or branch of government from becoming too powerful. I have lots of____【tomato】 here I Found A Reason 歌词 Hello everyone,I have found a set of keys at 地点If you lost your keys,please contact John by calling 3658429. 根据首字母补全单词this is my s() ID card c()John at 4859657 I found a set of k() he is a friend of____(we) Mr.Smith is an old friend of____.A.I B.me C.my D.mine这道题选择D,为什么?