you must study hard if you (won't don't haven't hadn't)want to fail the exam括号里选哪个啊

分类: 作业答案 • 2021-12-19 20:11:17

问题描述：

you must study hard if you (won't don't haven't hadn't)want to fail the exam括号里选哪个啊
说说理由啊,

答

don't
时间和条件状语从句里将来时用一般现在时表示
翻译成如果你不想考试不及格的话你必须好好努力学习.