是there is a set of keys还是there are a set of keys?is or are

是there is a set of keys还是there are a set of keys?is or are There is ( ) A.key B.a set of key C a set of keys D.keys 选哪个?为什么 A set of keys ---(be) on the table.There ---(be) a set of keys on the table.---(Are they/Is it) your set of keys? There is a set of sofa( )the right of the living room.介词 there are a set of machines?there are a set ofK orders which are to be processed on N machines我觉得应该是there is there is a set of keys,a book and some chalk on the desk?KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK 适当填空 There is a set of---------(key) on the table 改正句子中的错误,there is a colour TV set at the Corner of the hall. 麻烦各位帮我看一个英语句子 There is a set of keys on the desk 是对还是错? What is under the desk?A.It is a football.B.I can see a set of keys.C.They are red box.D.There is a cat. There are a set of k___ in the case 英语翻译Given a set of 148 points in a square with side length one,show that there is always a set of four of these points which lie interior to a circular disc of radius 1/9 是where is a set of keys 还是where are 回答是It‘s 还是They're是Is this a set of keys 还是 Are they a set of keys A set of keys is here划线提问A set of keys划线提问 这题看不懂,P is the set of positive factors of 20 and Q is the set of positive factors of 12.If x is a member of set P and y is the member of set Q,what is the greatest possible vaule of x-y?答案是19. There is a large number of places of interest in the U.K.还是 There are a large number of placesof interest in the U.K. 英语翻译Although a systematic over view of deviations from the set-point paradigm and a discussion of their theoretical implications are currently lacking,there is cumulative evidence that something is wrong with the set-point paradigm.外文翻 I lost a set of keys.然后是用 Is this yours?还是Are these yours?