—Can you tell me ?— Doing more speaking is useful I think.A. how I can improve my Japanes

问题补充：

—Can you tell me ?

— Doing more speaking is useful, I think.

A. how I can improve my Japanese

B. how can I improve my Japanese

C. when I can improve my Japanese

D. when can I improve my Japanese

答案：

(答案→)A. how I can improve my Japanese

B. how can I improve my Japanese

C. when I can improve my Japanese

D. when can I improve my Japanese

解析：你能告诉我怎样能提高我的日语水平吗？我认为多说是有用的。从句要用陈述语序，所以选A。