In this task, you're given an article and an answer. Your task is to generate the fill-in-the-blank question for this answer based on the given article. The blanks are always at the end of the question, and can be filled with more than one word or phrase.

Article: Charlie studied in a famous college for four years. He studied hard and did well in all his subjects. He hoped to become a good teacher. This year he left the college and began to work in a middle school. He likes his students and is strict with them. He does his best to make his classes lively and interesting. One day he carefully explained a chemical reaction to the students of Grade 2 in the chemistry lab. "Be careful, everyone," he said loudly. "Before I make the experiment,there're twenty five atoms of carbon ,but after I finish it, there're twenty four atoms of carbon left!" He stopped to watch the classroom and hoped his students would go on explaining it. But the young men looked at each other and nobody answered him. He had to ask, "What happens? What makes the atom lost?" The classroom was very quiet and none of the students looked at their teacher. "Who can tell us where it has gone?" Suddenly a soft voice came from the back row, "We did not see anybody leave the lab!"
Answer: his students could do well in chemistry
Charlie hopes _ ,so he does his best to make his classes lively and interesting.

Article: I had applied for the nuclear submarine program, and Admiral Rickover was interviewing me for the job. It was the first time I met Admiral Rickover, and we sat in a large room by ourselves for more than two hours, and he let me choose any subjects I wished to discuss. Very carefully, I chose those about which I knew most at the time - recent events, seamanship, music, literature, naval tactics , electronics, gunnery - and he began to ask me a lot of questions that were more difficult. Every time after my answers, he soon showed that I knew rather little about the subjects I had chosen. He always looked right into my eyes, and he never smiled. I was _ with cold sweat. Finally, he asked me a question and I thought it was my turn to show myself off. He said, "How did you stand in your class at Georgia Tech before entering Annapolis as a first year student?" I had done very well, and I threw my chest with pride and answered, "Sir, I stood thirty-ninth in a class of 820!" I sat back to wait for the congratulations - which never came. Instead, the question: "Did you do your best?" I started to say, "Yes, sir," but I remembered who this was, and thought of several of my times at the Academy when I could have learned more about our allies , our enemies, weapons strategy and so on, so I finally said, "No, Sir, I didn't always do my best." He looked at me for a long time, and then turned his chair around to end the interview. He asked one final question, which I have never been able to forget - or to answer. He said, "Why not?" I sat there for a while, shaken, and then slowly left the room.
Answer: the atmosphere of the interviews was very serious
The passage suggests that _ .

Article: Do you want to have a friend whom you could tell everything to, like your deepest feelings and thoughts? Or are you afraid that your friend would laugh at you, or just can't understand what you are going through? Anne Frank chose the first kind. She lived in Amsterdam during World War II. Her family was Jewish so they had to hide, or they would be caught by the German soldiers. She and her family hid away for two years before they were discovered. During this time the only true friend was her diary, which she called Kitty. In a diary dated on Thursday 15 June, 1944, she wrote, "Dear Kitty, I wonder if it's because I haven't been able to be outdoors for so long that I've grown so mad about everything to do with nature. I can well remember that there was a time when a blue sky, the song of the birds, moonlight and flowers could never have kept me puzzled. That's changed since I was here for a year and a half."
Answer: can understand you
In Anne's opinion, the best friend is one who _ .