请选择ABCD+Y5n.Y-v2I Bob didn’t like to .+V4t4J9P.G+M-P
A. exercise+V4t4J9P.G+M-P
B. exercises+V4t4J9P.G+M-P
C. exercising+V4t4J9P.G+M-P
D. exercised+V4t4J9P.G+M-P