this is a marker怎么变复数句

this is a marker怎么变复数句 This is a marker.（变复数） this is a piano怎么变复数 用yellow is a this marker组成句子colour your what is shit 1.May i borrow you book,please?(做肯定回答）____,________ ______ _________.2.This is a marker.(改为否定句）This ___ a marker. is this that 变复数怎么变 This is a pen变为复数句,怎么变 this is a bix.变成复数的句子怎么变 Where is my marker?怎么读 This is not her marker 改为同义句 This is my grandma.怎么变过去式? This is a knife.怎样变复数. this is a new car.变复数 Is this your backpack?变复数要怎么变啊! 英语with this marker 英语怎么变复数形式?如：This is a box.要说出怎么是这样变的？ This is a box and that is a knife.改为复数形式〔怎么变的〕 This is not her marker.(改为同义句)This marker___.改同义