---_____you _____ out the problem, Sam? --- Not yet, but I’m going to. A．Did, work B．Are, working C．...
2023-02-15 13:23:47 48次 2012-2013学年青海民和回族土族自治县五校九年级下期期中联考英语卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
---_____you _____ out the problem, Sam?
--- Not yet, but I’m going to.
A．Did, work B．Are, working C．Have, worked D．Will , work
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