18. – Students should devote most of their time to studying rather than playing computer g

问题补充：

18. – Students should devote most of their time to studying rather than playing computer games.

– . No pains, no gains.

A. Really

B. Obviously

C. Actually

D. Exactly

答案：

A. Really

B. Obviously

C. Actually

(答案→)D. Exactly

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