that is his box.句子换成his box is that.可不可以,为什么?

That box is his复数句式 That is a box 改为复数句子 1.That pencil box is___(she) 2.This is his book.The book is_ This is his pencil-box.改为复数句子怎么改? His box is blue,and_________is white. His baseballs are in that box对划线部分提问 in that box是 is that a box改成复数 that box is ____( big ) of all . That is her box.用her 提问 this dictionary is in that box复数 this box is a little than that That is a red pencil box.()