I bought a radio yesterday,but it can not work .
when I think the questions about maths ,I am annoyed with him who ask me some questions .
would you get up right now ,Tom You have to help me to make a cake please .
w hen you are in the bus ,the conductor always says that do you mind to show me your ticket
if someone want to copy your homework ,you should refuse him in polite.
我想应该没错.