请选择ABCD(A+B+u+v8r7H+^9P'd'wHe ________ down the street when the accident happened.0o6{.P5H7[)}8O6c5x;d5?
A. walks0o6{.P5H7[)}8O6c5x;d5?
B. walked0o6{.P5H7[)}8O6c5x;d5?
C. was walking0o6{.P5H7[)}8O6c5x;d5?
D. is walking0o6{.P5H7[)}8O6c5x;d5?