题目内容
___, 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 |
D
略
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题目内容
| A.If you double your efforts | B.So long as you keep up your spirits |
| C.Making greater efforts | D.A bit more efforts |