Traffic accidents have caused many deaths in the past few years. more action is taken,the problem will get even worse.

题型：单选题题类：模拟题难易度：普通

江苏省苏州市吴中区2017届九年级英语教学质量调研测试（—模）试卷

A、Unless B、If C、After D、When

举一反三

—Exactly. _____ can be enjoyed from it ______ you have a deep understanding of it, however.

— If you go, ______. If you don't, _______.

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