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1. Researchers are () how AI systems can generate intelligible and useful responses to human beings through the use of natural language.
2. The passionate volunteer continues her daily () of visits to the refugee camp, to children in need, and taking care of the sick there.
3. Recent events have helped to build up a common () between the two companies.
4. A dozen freshers were treated for () injuries but no death was reported as a result of this accident.
5. The lady promptly burst into () when she got the sad news.
6. The Human Resource manager will review the applications to () out the unqualified candidates.
7. The 15-year-old boy was fascinated by the starry sky, so he decided to study astronomy in ().
8. Since my parents moved to Shanghai, I have been living () my own for three years.
9. It was probably one of the few periods of life () this couple were not bothered by money issue.
10. The university offers numerous societies and lectures () you can find like-minded friends.
