I have two sisters, Kate and Mary. Kate is fifteen and Mary is twelve. They go to No. 14 Middle School. But Kate is in Grade Three and Mary is in Grade One. Kate likes to play Ping-pong and Mary often plays basketball with some boys. Kate likes the light red or purple clothes, but Mary likes the black or green clothes. Mary often likes to play ______ with some boys. A: ping-pong B: basketball C: games