It was a city in Hubei Province. On International Children's Day, some orphans (孤儿) from the Wuhan Welfare Institute for Children __(take) to the park. An elderly westerner was with them. The children were eager to tell him everything that was going on. They held him by the hand and never hesitated to call ____ Grandpa. This man was Professor William Dorrity, from Florida，USA. In 2003, ___ Professor Dorrity and his wife retired, they came to Wuhan and started to work as volunteers at the Welfare Institute.
The Dorritys have been working hard _ (improve) the conditions at the Welfare Institute since they came. They often take children on day trips, __ (bring) along with them all kinds of food for the kids to enjoy. They recently bought audiphones for four orphans _ hearing problems and small tape recorders for three blind children. They also bought a wheelchair for tenyearold Tan Jun, ___ suffers from a brain problem. With the __ (arrive) of spring, the Dorritys took the children for ___ outing. “We love China and we love children,” Dorrity said, “ ___ we are happy to do this.”