1. They got to Beijing at about 9：00 yesterday. (改为同义句)

They _________  _________ Beijing at _________ 9:00 yesterday.

2. Mike is very tall. (改为感叹句)

_________  _________Mike is !

3. I called the police while the alien was visiting the museum.？(改为一般疑问句)

_________ you _________the police while the alien was visiting the museum？

如何清理静电涂油机的刀粱？