将pencil改为复数形式

将pencil改为复数形式 将car变为复数形式.将pencil变为复数形式.将house变为复数形式 Exuse me!Is this your pencil case?改为复数形式 This is my pencil case改为复数形式 将he改为复数形式 将句子改为各种形式That is my pencil case(改为复数形式）Thoes are our pens.(改为单数形式）These are apples.(改为单数形式）She has a basketball.（改为否定句） “pencil case”的复数形式 pencil的复数形式是什么 将下列句子改为复数形式 Is that his pencil?No,it isn't.改为复数形式 where is my pencil-box?(改为复数形式）where _____ my _____? That is a pencil(改为复数形式）咋改紧急. Where is my pencil-box （改为复数形式）改：where are my pencil-boxes?为什么改为复数形式,原来的is要用are pencil-boxes 为什么要加上 that is his pencil改为复数句 that is a pencil.改为复数句 this is a pencil改为复数句 英语复数形式apple.box.pencil.class.baby.pencil pencil case的复数形式是什么?