用所给单词的适当形式填空。

1. Let's _____ (phone) Kate.

2. Mr Li often encourages me _____ (work) hard.

3. I would love _____ (speak) English with you.

4. Please speak _____ (slowly), I can't follow you.

5. It's hard _____ (learn) English well.

6. The children are playing on the playground _____ (happy).

7. I must buy a new pen, because my pen is_____ (miss).

8. They are all by _____ (oneself) today.

9. The old woman looked very _____ (worry).

10. Which island is _____ (far), the first one, the second one or the third one?

在页式存储管理中，进行地址映射所依据的关键是()。

A．缓冲区

B．目录

C．页表

D．分区表