下列句子中，没有语病的一句是

How do you keep in touch with your old classmates or schoolmates? -By chatting with them on the Internet, _______for three hours every day [ ]

__Barbara Jones offers to her fans is honesty and happiness.

Teachers recommend parents ____ their children under 12 to ride bicycles to school for safety.[ ]

Be quick, _____ we’ll be late for class.