In English colleges, classes are often arranged in freer and opener and many jobs are designed for students.
A. grades
B. ranks
C. customs
D. patterns
网友回答
A. grades
B. ranks
C. customs
(答案→)D. patterns
解析：pattern意思为 “模式; 模范; 式样”。句意为：在英国大学里，课程的安排比较自由开放，校园内许多工作留给学生自己去做。grade等级；级别；ranks 等级；地位；custom风俗；习俗。