Who’s _________ in China, Yao Ming or Liu Xiang?
________,Tom!It’s time to get up and go to school.
Looking ________ the window,you can see a lot of boys playing on the grass.
Look,they are ________ the picture on the wall.
The young mother sat down and watched her child ________ a lovely white cat.
—When did you have your school trip?—________.