The light is on in Mr. Green’s room. He _______ be at home.
—Could you please ________ the window? It’s cold outside.—Oh, I’m sorry.
Mary often helped her mother ________ out the trash last year.
Next put all the ingredients in a big bowl and ________.
What ________ the weather ________ like tomorrow?
She saw a lot of boys ________ football on the playground when she walked past (经过).