问题：
— 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. falling
— Have you finished the work?
— Not yet, but no matter how hard it is, we"ll keep until we make it.
B. trying
C. tried
D. falling
— Not yet, but no matter how hard it is, we"ll keep until we make it.
[ ]
A. failed B. trying
C. tried
D. falling
参考答案：