（题文）Unless he ______ the problem, he won't be happy. A. solve B. will solve C. solves
2022-10-17 12:35:28 18次 Unit 10 If you go to the party you’ll have a great time!-八年级英语上册单元测试卷 单选题 反馈错误 加入收藏 正确率 : 100%
题目内容：
（题文）Unless he ______ the problem, he won't be happy.
A. solve B. will solve C. solves
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