单项选择题
A. She will be absent in the next class. B. She will help the professor hand out the course outline. C. She will copy the outline by herself. D. She will go to the office of the professor.
A. Noise is a major problem; most people recognize its importance. B. Although noise can be annoying, it is not a major problem. C. Noise is a major problem and has not yet been recognized as such. D. Noise is a major problem about which nothing can be done.
A. the weather is terrible B. the traveler has little time C. the traveler feels seasick D. the sea is not calm