单项选择题
A．The United States. B．Some persons loving birds. C．People who think of the birds. D．Audubon’s future generation.
A．sightseers have noted the changes B．computer-animated views have shown the shrinkage C．one of the glaciers was hit by a ship D．the temperatures are much colder
A. Please wait here B. Show C. Here it is D. your license E. beg your pardon F. May I see G. I’m sorry H. Be careful