Have you been waiting long?
你等了很长时间吗？
There's a lady waiting to see you.
有位女士等着要见你。
There'll be a car waiting for you.
将会有辆车等着你。
She stood waiting in the dim light.
她站在昏暗的灯光下等待着。
I'm very sorry to keep you waiting.
对不起，让你久等了。
I'm sorry to have kept you waiting.
对不起，让你久等了。