试题详情
单项选择 适中0.65 引用1 组卷178
---Haven’t you finished the construction of the teaching building to be used next term?
--- Yes. My workers and I _____ on it for over nine months.
A.have workedB.have been working
C.workedD.had worked
19-20高三上·江苏宿迁·期末
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