A、  B、  C、  D、  B

(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 pots are in the sink.
(B) The pots are on top of the stove,
(C) The kettle is on sale.
(D) Ingredients are being stirred in.