—Have you finished the work? ( ) —Not yet, but no matter how hard it is, we.ll keep ___ until we make it.(本题2.0分) A. failed B. trying C. tried D. failing

—Have you finished the work? ( )
—Not yet, but no matter how hard it is, we.ll keep ___ until we make it.(本题2.0分)
A. failed
B. trying
C. tried
D. failing

出自：平顶山学院-大学英语2

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