Questions 19 to 21 are based on the passage you have just heard.
A. One that is already extinct in some parts of the world.
B. One that is extremely dangerous to humans.
C. One that faces threats from humans in its natural surroundings.
D. One that is likely to become extinct in its natural home.
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Questions 19 to 21 are based on the passage you have just heard.
About 15%.
B. About 20%.
C. About 25%.
D. About 30%.
Questions 16 to 18 are based on the passage you have just heard.
A. They have to take a lot of courses.
B. They don’t need to go to labs.
C. They take a very light class load.
D. They have much free time for independent study.
Questions 12 to 15 are based on the conversation you have just heard.
A. Driving in unsettled weather.
B. Taking long drives outside the city.
C. Meeting interesting people in the city.
D. Being able to enjoy the world of nature.
Directions: In this section, you will hear 8 short conversations and 2 long conversations. At the end of each conversation, one or more questions will be asked about what was said. Both the conversation and the questions will be spoken only once. After each question there will be a pause. During the pause, you must read the four choices marked A, B, C and D, and decide which is the best answer.
A. She wanted to please the man.
B. She bought the ticket on impulse.
C. She wanted to invite her professor to the concert.
D. She meant to ignore the appointment with her professor.
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