-No one can achieve anything of real significance he works very hard.- I got it, Dad. I’ll study har

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编辑：chaxungu时间：2026-04-27 02:43:59分类：高中英语题库

【题目】—No one can achieve anything of real significance he works very hard.

— I got it, Dad. I’ll study hard from now on.

A. because B. if C. unless D. when

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【答案】C

【解析】考查状语从句。句意：一个人要是不努力, 他就将一事无成。根据句意可知选unless引导条件状语从句。