(2013·临淄期末联考) It's too late. Go to bed right away.Forget you need to get up as early as you can ________ the early train?

Anne felt nervous ____ she gave a speech in front of so many students.

Though your status is permanent, your identification card is         only for 20 years and has to be renewed regularly.

The government decided to tear down the old bridge, which was not strong enough to allow the ___ of heavy vehicles (车辆).

---How could you ______me so easily in the crowd ?--- Because you are so tall and handsome.