A、  B、  C、  D、  B

(A) The young man is listening to a lecture.
(B) The man is selling flowers in a supermarket.
(C) The old man is delivering a speech.
(D) The old man has been sleeping for some time.

(A) The sea looks very rough.
(B) There are several men pulling the net.
(C) The people in the water are swimming.
(D) All the men are facing the camera.