问题
选择题
________, I think, and you will settle the problem.[ ]
A. So long as you keep up your spirits
B. If you make your effort
C. Making great efforts
D. A bit more effort
答案
答案：D
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________, I think, and you will settle the problem.[ ]
A. So long as you keep up your spirits
B. If you make your effort
C. Making great efforts
D. A bit more effort
答案：D