Israeli troops began pulling back from some parts of Gaza on Friday under a cease-fire deal with Hamas, and some residents returned to shattered neighborhoods amid confusion over when hostilities will be suspended after two years of warfare. “Thank God my house is still standing,” said Ismail Zayda, 40, in the Sheikh Radwan area in Gaza City. “But the place is destroyed, my neighbors’ houses are destroyed, entire districts have gone. Is it over? They said it is. Why does no one come out and