∠1=40°

∠2=____°

∠3=____°

∠4=____°

经过20多年的发展，在全国许多城巿，"12345"这部市长公开电话已不再只是单纯的政府与群众联系的热线，也成为公民监督政府的重要工具。

将下列陈述句改成疑问句。

①多得些知识不是坏事。

②这些设想即使能实现，也是遥远的事情。

News
Place: playground(操场)
Time: 5:00pm this Thursday
Program(节目): a friendly soccer game between Class 3 and Class 4
Lost
Hello, everyone! Do you see a cat in the park? Its name is Molly. It is a black cat. If you see Molly, please call Mary at 820-9291.
Wanted
Do you play the guitar well? We need a guitar teacher to teach kids between the ages of seven and ten. The work time is from Tuesday to Saturday, 300 yuan for each day. Welcome to join us