问题
选择题
___, I think, and the problems could be settled.
A．If you double your efforts
B．So long as you keep up your spirits
C．Making greater efforts
D．A bit more efforts
答案
答案：D
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___, I think, and the problems could be settled.
A．If you double your efforts
B．So long as you keep up your spirits
C．Making greater efforts
D．A bit more efforts
答案：D