This box is （） （） that （）.为什么最后一个空填one,而不填box呢?

（ ）pencil-box is this?填什么 The weight of this box is 《10 kilograms》.（划线部分提问）--------- --------- --------- --------- this box? This book is in that box.（改为复数形式） This box is very heavy.(改为感叹句） this box is big This box is heavier than that one.(变同意句）That box isn't ______ ______ ______ this one. This is a box of mine 改为同义句This is（ ）of ( )( ) This box is （） （） that （）.为什么最后一个空填one,而不填box呢? This is a box and that is a knife （改为复数句） This box is so heavy that i can`t carry it.（改为同义句）This box is __heavy __me __carry.英语 this is an empty box=this box is not 用英语单词 联句 1 it,is,no,his,pencilbox.2 This,is ,pencil box,hers.This is her pencil box (改为否定句）Is this your ruler?(同义词转换）Is( ) ruler ( ) This box is 3 times as large as that one.（转为同义句）This box is_____ ______ than that one. This box is small 同义句This box _ _ This box is small.句型转换This box ( )( ). This box is heavier than that one.(同义句转化） The box is very heavy.No one can lift it(改为复合句）This is _____ a heavy box _____no one can lift it. 语法（Attached to the box is） a red card,which reads “For Your 18th Birthday”.括号地方可不可以用主语从句,就是用what引导的.what attach to the box is