—What should I do in order to play the piano well?
— , you should make a reasonable plan; then practice every day, and stick to it.
A．To begin with B．To be honest C．To my surprise
A
【详解】
句意：——为了把钢琴弹好，我应该做些什么?——首先，你应该制定一个合理的计划;然后每天练习，坚持下去。考查不定式辨析。A. To begin with首先；B. To be honest平心而论；C. To my surprise令我吃惊的是。then然后，表承接；根据句意语境，可知BC不合语境，故选A。