1[单选题]
<p style="FONT-SIZE: 12pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: 'Times New Roman'"><span>There is no point<u><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></u><span>&nbsp;</span>the violin unless you practise every day.</span></p>

A.to learn to play

B.by learning to play

C.in learning to play

D.having learned to play