No water running through my Keurig. Think I'm missing a part?

No water running through my Keurig. Think I'm missing a part?

I'm trying to find out if I'm missing a water tube on my Keurig K70. It will not take any water from the reservoir & I'm not sure if there may have been a hose attached at one point. It's makes a brewing sound but no water is moving at all.