单项选择题
Passage Three
A. The plane can’t fly without air. B. The plane needs air for its refueling. C. It meets the passengers’ needs. D. It meets the pilots’ needs.
A. She thinks she is behind in her study. B. She only has time to study in the evenings. C. She has no time to study in the evenings. D. She thinks work is easier than study.
A. stop the glaciers move away B. make the glaciers flow faster C. accelerate the melting of glaciers D. prevent ships from crashing into glaciers