Answer: Walk- present tense, active
Explanation:
A possible meaning of the metaphor would be very disappointed because "dirt disappointed" is not meant in a positive sort of way. If you're dirt disappointed it most likely means you are very disappointed, possibly aggravated. Hope this helps
the first phrase is in the past tense, the second is in the present tense. Depending on the context, either can be used.
Salamanders can regrow entire limbs and regenerate parts of major organs, an ability that relies on their immune systems, research now shows. ... They then wiped out some or all of the macrophage cells to determine whether these cells were essential for regrowing the limbs.
