___
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.
___
A. He tells his password to the librarian.
B. He logs in on his home computer.
C. He uses the computer in the library.
D. He does it by telephoning the library.