7[单选题]
<span style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'">he failed, he won't give up his ideals.<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;&nbsp;</span></u></span>

A.if

B.even if

C.whether

D.when