is that a pencil

is that a pencil Is that a pencil s___? That is a red pencil box.() That is a pencil改成一般疑问句 that is a pencil.改为复数句 Is that a pencil?和That is a pencil?有区别吗? Is that () pencil case This is a book and that is a pencil is,too,that,pencil,my,and) (is,case,yellow,this,a,pencil This is Peter's pen and that is ( )pencil,( )a red pencil.(h That is a pencil case对a pencil case画线提问 That is a pencil box 这句话哪儿错了