请选择AB9Y2r;A'I*|1i7k1h “你正在做什么？”如何表达：;a.\/c;d'j)}*t)u+Y.z(t
A. What are you doing?;a.\/c;d'j)}*t)u+Y.z(t
B. What do you do ?;a.\/c;d'j)}*t)u+Y.z(t