题目内容
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提问人:网友cheng778
发布时间:2022-01-07
[主观题]
If we()hard in the past three years, things wouldn’t be going so smoothly.
If we()hard in the past three years, things wouldn’t be going so smoothly.
A、hadn’t been working
B、aren’t working
C、weren’t working
D、didn’t work
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