A、  B、  C、  D、  B应该仔细观察图片中没有人，江边的露台上立着栏杆并摆放着椅子。

(A)Some people are shaking hands.
(B)Some people are putting papers into a briefcase.
(C)Some people are washing the windows.
(D)Some people are exchanging business cards.

(A)Some boats are sailing near a pier.
(B)A railing has been erected near a body of water.
(C)Some seats on the terrace are occupied.
(D)A wooden post is being built on the deck.