A group of students in Ha Noi(1.collect) leftovers from restaurants to supply meals to needy people in their"Ha Noi Enough"proj3ct while several customers(2.waste) so much food there.Some people(3.worry) about the quality of the food preprocessed from leftovers while the volunteers(4.deliver) them.Therefore,project members(5.take) photographs as a roof of quality while they(6.give)the food to the poor.Project leaders (7.call) more restaurants to help them save food when they(8.develop)their project.While the" Ha Noi Enough" project(9.gain)more reputation,volunterers also(10.host) several social activities,including"Warm winter and Tet enough" and "Save Food,Save the Earth"