有人目睹了这次袭击吗？

Did anyone ___witness the attack?

最后，如果你目睹了一起事故，你可以迅速通知警方，这可以拯救生命。

Finally, if you ___witness an accident you can inform the police quickly, which can save lives.

她目睹了车祸并呼救。

She ___witnessed the car crash and called for help.