单项选择题

A. Reading an article about endangered animals.
B. Preparing for his papers.
C. Raising funds for saving the endangered animals.
D. Choosing which animal to save.
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单项选择题
A. There were only grandparents and children. B. There was one father, one mother, and their children. C. There were many relatives. D. There were two or more brothers with their wives.
A. There were only grandparents and children.
B. There was one father, one mother, and their children.
C. There were many relatives. D. There were two or more brothers with their wives.
单项选择题
A. A kind of exchange. B. A kind of business. C. A commercialized exchange. D. An international friendship association.
A. A kind of exchange. B. A kind of business.
C. A commercialized exchange. D. An international friendship association.
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