题目内容
—Have you finished the work?
—Not yet, but no matter how hard it is, we'll keep ________ until we make it.
A. failed B. trying C. tried D. failing
B
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题目内容
—Have you finished the work?
—Not yet, but no matter how hard it is, we'll keep ________ until we make it.
A. failed B. trying C. tried D. failing
B