现有A、B、C三种金属，C能与稀盐酸反应放出氢气，而A、B不能；把A放在B的硝酸盐溶液中，A表面有B析出．三种金属的活动性顺序有强到弱的是（　　）

A．A＞B＞C

B．B＞C＞A

C．C＞A＞B

D．C＞B＞A

Linda has a          . She plays games on it.

There are(有) three      in my pencil case.

Tom has a       . His pencils are all(全部) in it.

Anna likes fruit very much. She eats five        every day.

---Do you have a        ?

---Yes. Look! My books are all(全部) in it.