Answer:
I think i could be C (DISCLAIMER im not 100%!!)
Explanation:
29: returned
30: studied
31: started
32: lived
33: takes
34: works
35: slept
36: got
37: learned
38: leaves
39: swam
40: been
41: played and been
42: used and bought
43: talked
44: do
45: visited
46: goes
47: had
48: came
49: stand and met
50: read and cooked
Hope this helps *smiles*
Ancient isn't cause modern is Like now and New and ancient is old