下列各句中，没有语病的一句是 （ ）

Tell us something about Canada, OK—I’m sorry. _______ Jack _______ I have ever been there.

The driver _____ the traffic lights and nearly caused a traffic accident.

It is playing computer games _______ the boy spends most of his spare time

Sorry，Mum, I lost my key to the bicycle again． —Oh! How_____ you be so careless! You have to learn to look after your belongings．