答案：

　　46.根据原文“He liked dancing most”，故选择 B。

　　47.根据原文“Bob‘s high school didn’t have a boy‘s dancing group but a girl’s group”故选择 A。

　　48.根据原文“Other boys will want to join. Soon， there won‘t be any girls in the group.”故选择 B。

　　49.根据原文“The judge said it was not a right decision”。故选择 D。 50. We can infer(推断)that Bob felt __ when he went back to the group.

　　50.根据原文推断，Bob 心愿达成，所以会感到快乐的。故选择 C。