1.　　　 Learn about the development of the computer.

A: Hello!

B: Hello, May I 1_____ to Li Lei.

A: This is Li Lei　 2______.

B: Oh, Can you 3____ me? My computer 4 _____ work.

A: . 5_____ . But not today. I have to 6_______ to see my mother.

B:OK. Can you tell me when you can 7______ it.

A: Tomorrow morning　 8______ ten o’clock.

B: What’s your 9_______ .

A: No.10 Yuhua Street.

B: Then, 10 _____ you. Bye

A：Bye-bye

5. Reach him by telephone.(写出同义句)

4. I search the Internet twice a week.(对划线部分提问)

3. I have been to Beijing twice.(改为否定句)

2. He said:“I have written three e-mails”.(改为间接引语)

1. This idea has given zoo animals a better life.(改为一般疑问句)

20.(　　 )－_________ will they receive an e-mail.

－In a few seconds.

A. How soon B. How far C. How long D. How often

19.(　　 ) Why_______ their mother only buy one ice cream.

A. do B. it C. are D. does