As students, we have many duties to perform, with improving our ability to learn . A. in s

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A. in special
B. in advance
C. in practice
(答案→)D. in particular
解析：句意：作为学生，我们有许多职责去做，尤其是提高我们的学习能力。in advance 提前；in special特别；in practice在实际上；in particular尤其。根据句意故选D。