___
A. He is preparing to suggest an answer to the question that he has just asked.
B. He is trying to encourage the students to answer a difficult question.
C. He is expressing doubt about the concept that he has been discussing.
D. He is probing to see whether the students have understood the lecture so far.
___
A. The lack of Vitamin D is the main cause of skin cancer.
B. Sunbathing for a long time causes no problems.
C. The danger of the sunshine has been ignored because of its benefits.
D. The advantages and disadvantages of the sun.
___
A. It changes ergo sterol to Vitamin
B. It suppresses serotonin.
C. It can cause Seasonal Affective Disorder.
D. It can cause skin and bladder cancer.
___
A. Some applicants were required to test an entrance examination to get admitted to the school.
B. Case studies became the main method of teaching.
C. Studying law became a 3 year endeavor.
D. Students should pass the comprehensive examination to graduate from the school.
___
A. The history of the law system in America.
B. The difference between British law schools and American law schools.
C. The development of education laws in America.
D. The history of law schools in America.
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