把There is a pen on the tabie.和There are two pencils on the t

There ___ a pen and two pencils on the desk.用is还是are~ There( ) a pen and a book on the tabie . there is a pen and two books on the desk.还是there are a pen a one,two,pen,pencils,is,there,the,table,on,and(连词成句) 18.There _____ a pen,two pencils,and three books on the desk There ( ) a pen and ( ) pencils ( )on the desk. Here is a pen and two pencils on the desk. 请问:There ____ a pen and two pencils in the bag.填is 还是 are 急 There is a book,two pencils and a box on the desk.请问用There i 是there is 还是there are one pen and two pencils in the box There are a book and two pencils on the desk.改错 there is a pen on the table;那there are pens on the table可以吗?