is,pencil,that,the,a,in,lost and found,case连词成句

Is that a pencil s___? a pencil is under the that is a pencil.改为复数句 This pencil is 18cm.That pencil is 20cmThis pencil is a ___ ____ than that one Is that a pencil?和That is a pencil?有区别吗? is,pencil,that,the,a,in,lost and found,case连词成句 is,too,that,pencil,my,and) (is,case,yellow,this,a,pencil(is,too,that,pencil,my,and) (is,case,yellow,this,a,pencil)连词成句 Is () a pencil-case in the bag? 连词成句（is,too,that,pencil,my,and) (is,case,yellow,this,a,pencil)(an,is,English,this,book)(the,and,lost,in,found,is,your,that,pen,case)(that,in,is,what,English)有五句呀 That is a pencil case对a pencil case画线提问 what is the pencil the pencil case is( ). 改错改错Is that a pencil case?Yes,it's. is,pencil,that,a.(连词成句） 对括号部分提问:That is (a pencil sharp enet) That is a pencil case.(改为否定句) That is a pencil sharpener怎么变为一般疑问句? That is a pencil box 这句话哪儿错了