you study you will learn.A. Harder….harderB. The more… the harderC. The hard.. the mor

问题补充：

you study, you will learn.

A. Harder….harder

B. The more… the harder

C. The hard.. the more

D. The harder.. the more

答案：

A. Harder….harder

B. The more… the harder

C. The hard.. the more

(答案→)D. The harder.. the more

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