succeed in doing anything .A. Only by working hard we canB. By only working hard we canC.

问题补充：

succeed in doing anything .

A. Only by working hard we can

B. By only working hard we can

C. Only we can by working hard

D. Only by working hard can we

答案：

A. Only by working hard we can

B. By only working hard we can

C. Only we can by working hard

(答案→)D. Only by working hard can we

解析：考查only的部分倒装句。Only的部分倒装要符合两个条件。only放在句首，且强调状语by working hard，使用部分倒装。句意：只有通过努力学习，我们才能获得成功。故D正确。