A: Rob, you look upset!

B: I'm worried about Mr. Smith.

A: Where is he?

B: Maybe he is hurt. Look at his desk.

A: Oh, there are papers everywhere. There is some bread his desk.

B: And there is some coffee on the desk, too.

A: See? Something bad might have happened.

B: Oh, Betty. I just touched the coffee. It is still hot.

A: He must be nearby

B: Oh, there some coffee on my hand. I need a tissue(纸巾).

A: But the box is empty.

B: You can find some in the next-door office.

A: Oh, the door is locked. But I can hear something inside.

B: Let's with the key and have a look!

A: Oh, Mr. Smith is here. He is sitting on the chair and thinking about something.

—Yes. There must be teenagers _____________fun.

    It's a sad thing to lose a beloved pet. This is what happened1Linda Edwards. 16 years ago, her pet cat Spaz went missing. However, 12 years2he got lost, Spaz was returned to her. How come? It sounds like a mystery, doesn't it?

    Spaz went missing in 2002 and Edwards3him for three months. She tried every possible way but was never able to find him. Finally, she gave up.

    But one day someone found a dirty, thin cat and took4to an animal hospital. The veterinarians (兽医) checked to see whether he carried a microchip (微芯片) .5, he did. So they got to know his name and owner.

    "A good man6a cat and brought him here. The cat, whose name is Spaz, has been missing for 12 years!" The animal hospital wrote on its Facebook page. And then, a (n) 7reunion (团聚) happened.

    The microchip does a good job. Sometimes cats or dogs run away, or somebody may steal them and take off their collars (颈圈) , making it8to recognize (认出) them. Those pets that carry a microchip allow animal services to find out if the pets have a9waiting for them.

    Thanks to the microchip, Edwards10get her pet cat back.

—He is_____________. His job is to make sure that drivers obey the traffic rules.

—No. It _____________be Mr. Wang. He has gone to America.