单项选择题

According to the context, "...how my own actions factored in" means（）

A．how I could contribute to water conservation.
B．how much of what I did contributed to freshwater shortage.
C．what behaviour could be counted as freshwater-saving.
D．what efforts I should make to save fresh water

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单项选择题

After the street conversation with Mr. Cattanzara, George（）

A．remained the same as usual.
B．became more friendly with Mr. Cattanzara.
C．began to like his neighbours more than ever.
D．continued to read the books from the list.

单项选择题

Which of the following is NOT mentioned as a distinct feature of U.S. class reunions（）

A．Class reunions have become a profitable business.
B．Class reunions have brought about a variety of activities.
C．Reunions are regular and formal events organized by professional agencies.
D．S. class reunions are usually occasions to show off one’s recent success.