单选题 The passionate volunteer continues herdaily ______ of visits to the refugee camp , to children in need , and taking care of the sick there .

单选题 Since my parents moved to Shanghai, Ihave been living _______ my own for three years.

单选题  It was probably one of the few periods of life _______ this couple were not bothered by money issue.

单选题 The Human Resource manager will review the applications to ______ out the unqualified candidates.

单选题 The lady promptly burst into______when  she got the sad news.

单选题  A dozen freshers were treated for_____injuries but no death was reported as a result of this accident.

单选题 7. The 15-year-old boy was fascinated by the starry sky, so he decided to study astronomy in_______.

单选题 1.Researchers are _____ how AI systems can generate intelligible and useful responsesto human beings through the use of natural language.