A、  B、  C、  D、  C

(A) They are packing up the instruments.
(B) They are playing a CD.
(C) They are performing outdoors.
(D) They are playing a sport.

(A) The man is holding a microphone.
(B) The man is speaking on stage.
(C) The man is talking into the radio.
(D) The man is installing a telephone.