【推荐2】Two years ago, Jo acted as a teacher in Papua New Guinea. There was no electricity, water or textbooks in the school. When she knew that the students     1     (die) to learn chemistry, she tried to show     2     (they) chemistry experiments every week. Sometimes, she doubled whether chemistry was relevant     3     these students, because most of them would go back to their villages. Actually, they had no     4     (person) ambition. The local people had a hard life. Their hut was so dark that it took time for one’s eyes     5     (adjust). The only possessions     6     could be seen were one broom, a few tin plates and cups and a couple of jars. They didn’t speak much of the local English dialect. When     7     (sit) around, she loved listening to them softly talking to each other in their language.    8     (occupy) with teaching, she had no time for social     9     (activity). Instead, she often joined in their family party. She felt it was     10     privilege to spend a day with them.