按要求完成下列各题，每空一词。

1. Mr Wang usually goes to work by bus. (写出同义句)

    Mr Wang usually _________ a bus to work.

2. The boy is so young that he can't walk. （写出同义句）

    The boy is _________ young _________ walk.

3. We watched a new movie last night. （就划线部分提问）

    _________ did you _________ last night?

4. Please pour the milk into the blender. (改为否定句)

    _________ pour the milk into the blender, please.

TJWX-2000型信号微机监测系统是由（）、电务段管理系统、上层网络终端和广域网数据传输系统等四部分组成。