Only by working hard hope to improve her English soon、 A she can B she did C can she D did she 原因

题目

Only by working hard hope to improve her English soon、 A she can B she did C can she D did she 原因

答案

Only by working hard 【can she 】hope to improve her English soon.
只有通过努力她才可指望在短期内提高她的英语水平
Only + 状语 置于句首时要用部分倒装语序
从句意看,应该带有情态意味“才能指望.”排除D