你需要一个驾驶执照才能合法开车。

You need a driver's ___license to legally operate a car.

他忘记带营业执照了，所以无法参加展会。

He forgot to bring his business ___license, so he couldn't attend the trade show.

他的职位给了他随意发表意见的自由。

His position gives him the ___license to speak his mind freely.

政府为这家新医院颁发了运营许可证。

The government ___licensed the operation of this new hospital.