请选择DCBA-S(`4z-s5~.F+_,e3P*HMy sister used _________ to school by bus, but now she goes there on foot.)D(J0_+T0s)X4s4K9v
A. goes)D(J0_+T0s)X4s4K9v
B. went)D(J0_+T0s)X4s4K9v
C. to go)D(J0_+T0s)X4s4K9v
D. go)D(J0_+T0s)X4s4K9v