He was ____________knowing everything about the courses he was to take at the university.

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问题 He was ____________knowing everything about the courses he was to take at the university.

选项 A、lost in
B、attentive to
C、clear of
D、keen on

答案D

解析考查词组的意思。“be keen on. . . ”意为“热衷于. . . ”符合题意。“lost in”意为“迷失”，“attentive to”意为“留意、留心”，“clear of”意为“从. . . 扫清. . . ”，均不符合题意。故正确答案为D。

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GCT工程硕士（英语）

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