There are a pencil and two pens on the desk.这句话哪里错了?There是A,are是B，two pans是C，on the dask是D，ABCD哪个错了？你们都不对

There is a pen and a pencil 还是There are a pen and a pencil two pencils in my pencil-case a piano in themusic room There is和there are There are some ( ) in these ( )选项：A.knifes.pencil-boxesB.knives.pencils-boxC.knives.pencil-boxD.knives.pencils-boxes There are some books,a pen and a pencil on the table,________there? look there ___ a pencil and some books on the desk A.is B.are 是there are some books and a pencil on the table吗 There are an erasr and a pencil on the desk(连词成句) What ( ) in the pencil-box?A.is B.is there C.are There are some pencil sharpeners and a picee of paper on the desk.(改为否定句) Is this your ____?There are some books and a pencil case. there isn't a pencil是什么意思 there is a pencil-case and some -dad ,what __in the desk? -there are some books and a pencil-bos. A.are B.is c./ There isa pencil in the Pencil case对a PenThere isa pencil in the Pencilcase对a Pencil划线提问 there ____ a pencil,two pens and there books on the desk,but none of them ____mineA is;is B be;are C are;are D are;is There is a pencil There is an egg. There are some___in these__.a.knifes...pencil-boxes b.knives...pencils-boxc.knives...pencil-box d.knives...pencils-boxes选择D对吗? Is there a pencil and two boxes on the desk?的答句应该是什么?A.Yes,there is.B.Yes,there are.