问题

otgoodatsports,butwhenit______mathematics,heisthebestintheclass
A:walking to take ataxi
B:to walk rather than take a taxi
C:walk to taking thetaxi
D:to walk rather than to take a taxi
B:to walk rather than take a taxi
C:walk to taking thetaxi
D:to walk rather than to take a taxi
正确答案是: