A、  B、  C、  D、  B图片中表现的是一名女子在使用电脑的情景。从圈中我们可以看出她的手正放在键盘上，所以选项(B)typing on a keyboard符合这一场景，是正确答案。如果没有听清选项(D)中

(A) He’s receiving a facsimile.
(B) He’s listening to an announcement.
(C) He’s using a public telephone.
(D) He’s carrying his luggage.

(A) She’s watching a video.
(B) She’s typing on a keyboard.
(C) She’s adjusting her chair.
(D) She’s printing some files.