.---____ did you leave the classroom? ---____ I saw my daughter sit down and read her book. 

—How long does it take to get to the airport?—Forty minutes. But it’s foggy today. I’m not sure          the highway will closes soon. Let’s set off earlier.

Shanghai is larger than _________ in Japan.

Is that bike        ?

---What’s up?  ---There is _______ with my computer. It doesn’t work.