—It is a pity that the disease is terrible at present. —Yes. It will be worse ________ we take actio...
2022-05-12 13:40:13 45次 2020年江苏省泰州市教育集团（联盟）中考二模英语试卷 单选题 反馈错误 加入收藏 正确率 : 100%
题目内容：
—It is a pity that the disease is terrible at present.
—Yes. It will be worse ________ we take action to do something for it.
A.if B.unless C.until D.when
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