these are set by a special organization and there are numerous sources on the Web that outline the guidelines.

these are set by a special organization and there are numerous sources on the Web that outline the guidelines. -What () these?-()peaches A are;it's B are ;they're C are;these are These are the pens ____we write A with these B by these C by which D with which They are a set of keys ,It's a set of keys 哪个是正确的? Here is （）?Are these yours.A.a set ofHere is （）?Are these yours.A.a set of keys B.a set of keysC.the keys D.keys填什么 ,为什么 I lost a set of keys.然后是用 Is this yours?还是Are these yours? What are these?( ) carrots A.it's B.these aWhat are these?( ) carrotsA.it's B.these are C.they's These are the pens ___ we write.A.with these B.by theseC.by whichD.with which If T is the set of even integers and S is the set of integers that are divisible by 7,which of the following integers is NOT contained in set T and is NOT contained in set A 4 B 10C 28D35E39额第一道爆容易我看错题目了。应该是下面这 Are these your A.parent`s B.father and mother If these trousers are too big,buy a smaller _________ .A.set.B.one.C.piece.D.pair. They's going to Shanghai by plane改为同义句 Are these crayons yours 今天老师跟我们说a set of keys后面用is,后来我们读了一篇短文是这样的：Found:A set of keys.Are these yours?那为什么这里用Are these呢? —What are these?—Oh,a set keys .They're mine.这句话哪里错了 found:a set of keys Are these yours call jenny at 284-5486.换种方法怎么写 什么are什么t-shorts A this;lucy B these;lucy C these;lucy's -----____school bags are these?-----They are Tom's and Mary's.A.Whom B.WhoseC.Who ___books are these?They are Mr Green's A.What B.Who's C.Whose