>I will be waiting for you on the/a bridge
If it's the only bridge and he knows that too, then "the". If you said 'on a bridge' or if he is not aware of the bridge you are referring to, the next thing he will say is "What [Which] bridge?"
>I will be waiting for you on the/a bridge
If it's the only bridge and he knows that too, then "the". If you said 'on a bridge' or if he is not aware of the bridge you are referring to, the next thing he will say is "What [Which] bridge?"
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