例句：
1、 I was waiting for a bus.
我在等公共汽車。
2、He had been patiently waiting in the anteroom for an hour.
他在前廳耐心地等了一個小時。
3、I'm still waiting for confirmation of the test results.
我仍在等待考試結果的通知書。
4、There are a lot of people back there waiting to get in.
后面有許多人等著進來。
5、Students stood around in groups waiting for their results.
學生們成群地站在周圍等待成績。