[单项选择]A. Secure more students’ parking spaces. B. Preserve an open space on campus.
C. Get more funding for their group. D. Schedule a meeting with college administrators.

[填空题]For high school students, working more than 20 hours a week at a part-time job could be doing more harm than good, a new study suggests. These results (47) a number of recent studies that found no negative effects on students from working intensive hours, but researchers say that the (48) of their data, using advanced statistical measure, may account for this difference.
According to the study, students who worked more than 20 hours a week had lower (49) for educational attainment, lower school engagement, higher levels of substance abuse, and other problem behavior. However, these same students also showed more autonomous(自主) decision-making and had (50) higher grade point averages than teens without jobs.
Additionally, students who worked long hours still (51) negative outcomes up to a year after quitting or reducing hours; researchers advise that working long hours for a year or more of high school could have even

[单项选择]In the course of a day students do far more than just ______ classes.
A. attend
B. attended
C. to attend
D. attending

[单项选择]In the course of a day, students do far more than just （） classes.
A. attend
B. attended
C. to attend
D. attending

[简答题]Male students emit more heat than female students do, and the larger a student is, the more heat he produces.

[填空题]Students have been complaining more and more about stolen property. Radios, cell phones, bicycles, pocket (26) , and books have all been reported stolen. Are there enough campus police to do the job
There are 20 officers in the Campus Security Division. Their job is to (27) crime, accidents, lost and found (28) , and traffic problems on campus. More than half of their time is spent directing traffic and writing parking tickets. (29) accidents and other emergencies is important, but it is their smallest job.
Dealing with crime takes up the rest of their time. Very (30) do any violent crimes actually (31) . In the last five years there have been no (32) , seven robberies and about 60 other violent attacks, most of these involving fights at parties. On the other hand, there have been hundreds of thefts and cases of deliberate damaging of public property, which usually involves breaking windows or light