---There’s someone knocking on the door. Who _________ it be?---It must be John. He promised to be here at 8:00.

 --My computer ____start, no matter how hard I try.--It might have crashed.

(2013·天津，9)No one________ be more generous；he has a heart of gold.

 ---The coat with Yao Ming’s picture _________ Tom’s. He likes him very much. --- No, it ___________ be like his. He dislikes black colour.

If you often go to a gallery, it ______ well change forever the way you look at art.