请选择DCBA7O:T:x9S7G3h:tHe gave us____ on how to keep fit.7Z:H+v)M1z6Y2k/[/G0p7p;v(J
A. some advices7Z:H+v)M1z6Y2k/[/G0p7p;v(J
B. some advice7Z:H+v)M1z6Y2k/[/G0p7p;v(J
C. an advice7Z:H+v)M1z6Y2k/[/G0p7p;v(J
D. a advice7Z:H+v)M1z6Y2k/[/G0p7p;v(J