假设你是学校的网络管理员，原来有三个VLAN，现在增加了一个科室，要创建一个新的VLAN，名字为DIAOYAN，请问以下哪个叙述是正确的？（）

A、把连接该科室的计算机所在的端口指定到新创建的VLAN中

B、VLAN必须创建

C、必须指定VLAN名

D、VLAN必须配置一个IP地址

按要求完成下列句子。

1. Lily and Lucy were out yesterday evening. (变成否定句)

    _______________________________________________ 

2. I went to New York City last week. (变成否定句)

    _______________________________________________

3. It was Sunday yesterday. (变成一般疑问句)

    _______________________________________________ 

4. He did his homework an hour ago. (变成一般疑问句)

    _______________________________________________

5. Mr Green came to China two years ago. (对划线部分提问)

    _______________________________________________ 

6. I stayed at home just now. (对划线部分提问)

    _______________________________________________

7. He is flying to Beijing now. (用last month改写句子)

    _______________________________________________