B) 1. The policemanheard...
2. Mara saw...
3. The children turned back....
4. Tom gave...
5. Ann had....
A) Regular: decide-decided, knock - knocked, answer - answered, open-opened, jump-jumped, turn-turned, rush-rushed, introduce- introduced, shout-shouted, walk-walked, die-died.
Irregular: be- was/were, have - had, get - got, hear-heard, see-saw, give-gave, say-said.