A、
A vacation trip to Yellowstone Park.
B、
A lecture by a visiting professor.
C、
Her biology thesis.
D、
A research project on Yellowstone Park.
【正确答案】
D
【答案解析】
A、
More buffalo are surviving the winter.
B、
Fewer buffalo are dying of disease.
C、
More buffalo are being born.
D、
Fewer buffalo are being killed by hunters.
【正确答案】
A
【答案解析】
A、
She is from Wyoming and eager to visit Yellowstone Park.
B、
She needs the money to continue her studying.
C、
She has been studying animal diseases.
D、
Her thesis adviser is heading the project.
【正确答案】
C
【答案解析】
A、
A month.
B、
Two weeks.
C、
A semester.
D、
The whole summer.
【正确答案】
D
【答案解析】
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