May I borrow your knife?
Does he like playing computersgames?
Is she pretty and funny?
Are you a middle school student?
Do your parents like to watch TV
Am I clever?
Can I help you?
以上全用升调（一般疑问句）
What colour do you like best?
It‘s time to have an English class now.
这两个用降调（陈述句及特殊疑问句）
Are they in Class 1╲,Grade Seven╱?