填空题 The professor wanted to know why many of her students did not complete their work or ask for help. She (47) to do a research project. She got the (48) of the university ethics committee. Such groups consider moral and legal (49) in studies.
In the spring of 2002, she (50) to her own university under the name "Rebekah Nathan" and was (51) . She lived in student housing. She took five classes during her first term and two in the second semester. She did pretty well, although she got one C, a mark of (52) . She also played sports.
The professor says her year as a student changed the way she teaches. She gives less reading now. She asks questions (53) to get students to speak more. She offers help. And she says she is no longer (54) if a student falls asleep.
Other professors and research experts, however, criticize the experiment. They say she was (55) . They say she could have gotten the same information without (56) . There have been a lot of angry comments on the Internet. But some people say she tells the real story of student life.

• A) issuesI) spying
• B) designedJ) offended
• C) decided K) matter
• D) approval L) made
• E) applied M) honest
• F) dishonest N) even
• G) average O) agreed
• H) admitted