Hanover County investigators have arrested two men and two women in a string of daytime residential break-ins in the county’s Beaverdam area, authorities announced yesterday. The break-ins took place between Dec. 31 and Jan. 7. They happened in the 1900 block of Hewlett Road, the 14000 block of Verdon Road and the 16000 and 17000 blocks of Goshen Road, authorities said.