请选择DCBA6p0c)Z9h9^7W)T0} When I looked out of the window, I ____ smoke.(v3D7_4B-^(F8C5h:|5p3`
A. see(v3D7_4B-^(F8C5h:|5p3`
B. sees(v3D7_4B-^(F8C5h:|5p3`
C. seeing(v3D7_4B-^(F8C5h:|5p3`
D. saw(v3D7_4B-^(F8C5h:|5p3`