Part 1 Two man Too men Two person Two men Part 2 is are be to Part 3 work. working. walking. worked.
Part 4 One guy Won guy One of guy One of guy Part 5 is drilling has drilled was drilled are drilling Part 6 while the another during the other while the other one while of the other Part 7 be digging. are digging. is digging. has digged.
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