下列各句中，没有语病的一句是

______the Internet is of great help, I don’t think it’s a good idea to spend too much time on it

A smile________the mother’s face when the son walked onto the platform to receive the prize

July the 13th,200l _______ a very bright night in Beijing that will never fade from memory．[ ]

_______ do you have a sports meet at your school—Once a year.