There is n__ but a pencil in my pencilcase.

There is n__ but a pencil in my pencilcase. There is n______ but a rencil in my pencil case. there is n but a pencil in mypencil-case. There is a pen in my pencil case改为I () a pen in my pencil ca is,a,there,pencil-case,in,bag,my(.) a,forest,the,in,there,is there is a pen in my pencil-box.there is an apple on the tab There is not a pen in my pencil-case.和 I'll show you picture There is a ruler in my pencil box.（改为一般疑问句） There is a knife in my pencil-box.对划线部分提问 There is a eraser in my pencil-box.这句话有个错误,在哪? There is a pen in my pencil case.【改为同义句】 1.There is a pen in my pencil case.（同义句）