---_______ does this book belong to? --- It _______be Li Lei’s. There’s his name on it.
Don’t you think this is useful advice?
--Could you tell me _______? --Next week.
These photos ______ on the Great Wall last week.
If it ______ tomorrow, we’ll go to Bird’s Nest.
—Jim, ________ you answer the last question? -- Sorry, I can’t. It’s too hard.